There will be future posts on this topic too :)
I offer a solution if I can think of one.
No standards or too much standards in one field:
If there is more than one standard, it basically destroy the point of standards.
Why don't US start to use SI like every other developed country in the world?
Solution: Get congress to pass a law so all textbooks only use SI.

Uneducated people:
It's interesting that uneducated people often think they know a lot about the world when they in fact, knows nothing.
Solution: Everywhere is education oriented. Like say, Jail. People in Jail have to learn enough stuff and have to take the standardized test so they can get out.

Extreme nationalism and racial pride
That's the cause of a lot of incidents in this world.
Grace Wang is a true hero. It take balls to do what she did if you know what Chinese nationalist extremist(which is a different name forfascist) are like.

These are the Chinese people in Hefei(where I lived most of my life) protesting against the Olympic Torch Relay incident in France by boycotting Carrefour and not allow anyone enter the store because Carrefour is owned by French people.
I think China is the country with most racial pride I have ever seen. They automatically make everything an issue of "The pride of our nation!" If an outsider(say, Japanese dude) punched some Chinese guy in the face for w/e reason, it is going to be a storm of "Protect the national pride and start attack other countries with curse words and hack their website" everywhere around the web.
BTW I have been to that store... the item in their is expensive
Carrefour is going to half price everything in the International Workers Day, where everyone will have a 7 day off in China. The "Carrefour boycott day" is also on that date. I would like to see what happens. I wish I'm in China so I can buy a lot off nice goodies for even cheaper price. But I heard there is a possibility I get beaten by extremists if I bought anything. Anyway.

Solution: Force people to breed with other race. US conquer the world.

Debate though personal attacks or ignoring the other side

Ok, but do you have any support of what you are saying?
Your mom told me, you fag.

According to [some place] [something] have [some chance] of [w/e].
Umm, I don't care what you say or w/e the entire world says, I'm ALWAYS right.

More examples can be found on here.
Solution: None, unless we kill 99.99% of humans...

Biased Media
Not everything you see on the news is unbiased or the whole truth. Something is covered up to sway the audience to another side. Happens in China and every other country.
Solution: None. Media will always have bias.

Many languages
For god's sake, everyone pick up one language and forget the rest. We are making the world more complex by having so many languages! Start use Lojban!
Solution: Force people to learn Lojban after all humans are multiracial and under one government's control

Culture
People fear lose of culture, that's why they don't make changes to many things. Like language! There are thing acceptable in one culture but not the other.
Solution: Make people think culture is a bad thing, make it only something humanities study. Or create a standardized culture.

History
History made who we are, and it decides what we will be.
Solution: none. We will always have history

Education system
There is still too little freedom in education system, it doesn't suit the need of everyone.
Solution: More specialized education system, like a student can study nothing but math for 4 years.

People who think computer science is learning about word/excel
That includes my mom. She think everyone knows computer science because it is so easy. Everyone can work on a computer.
Having the word computer in it doesn't make it word/excel!
Solution: Get people educated. They should stop making assumptions.

People who live their dream by letting their children accomplish them
My dad says he will not pay for my college tuition if I chose to major in Mathematics. because he think I can't earn good money if I'm a math major. He just want me to be rich and live the life he can't live.
Solution: None.

People who get offended by many things
I hate sensitive people. Get some lotion.
Solution: None, they are born sensitive

Humanitarianism
Why don't we obey the law of nature and do natural selection? You should stop interfere with other countries. Let people die, because it will be for the good of themselves and future people. How can we save everyone when the resource is clearly getting used up?
Solution: None, they have their freedom of religion

Humanities
I hate all Humanities classes except philosophy. I don't care about arts, literature, languages and music. Humans don't have to study them to live on. What did the humanities ever do to contribute to the invention of better technologies. What did essays like "Why Hamlet made w/e choice" can help the humans in general?
Solution: Make the world emphasis more on science.

Spam
Nuff said.
Solution: Nuke Nigeria. Fine spammers. Jail Spammers.

Noobs
Solution: None.

People who group math into the big category "science"
If you really have to group math, it's Formal Science. But I don't like math been called a science. Because usually science require the "scientific method" and experiments.
Solution: Call the combination of science and math. Mascienth.

People who believe if I like math, I must like science
No. Doesn't work like that
Solution: Tell them I DON'T like science. I DON'T like to do experiments.

The Game
You just lost The Game.
I can never escape that game. That's like fate. I hate fate.
Solution: Win The Game by never think about it.

Syosset High School
Syosset High School(SHS) is the most overpaid high school in Long Island. There are a few things I hate not because those things are bad. it's because I'm jealous.

1. They have very fun math class that actually EXPLORES many math never mentioned in normal high school curriculum. They learned about fractals, graph theory and other kind of "OMG I wish my school is teaching that." I believe if I'm in that class, I'm just going to relearn what I already know, but that's not the point. I want to have something fun to discuss in my math class instead of learning derivative for days and do simplest practice possible.
2. They have AP classes we don't have. Like AP Calculus BC. We stopped at AP Calculus AB.
3. Natalie Portman is from SHS.
4. People in SHS knows there is AMC test, student in our school don't even know what that "A" stands for.
5. They enter FIRST Tech Challenge, and they have a club called "Technology club". In our school, we don't know what technology is... technology is an abstract idea... like facebook poke...
6. They have more than one smart board in classroom, and they use it for math.
7. There was a girl in SHS I found very cute, now she is in Jericho high school, btw I hate that school too.
8. SHS have a better wikipedia article than my school. And I started the wikipedia article.
9. No one in my school have done AIME this year. SHS has.
10. SHS have more Siemens/Intel semifinalist/finalist than my school
11. They have better quiz bowl and Long Island Challenge team..
12. There is a dash in my school's name. WTF.
13. SHS students actually cares about academics.
14. My school spend 10K on a internet blocking device and it blocked mathworld while I can buy guns and drugs online. One more reason to hate SHS.
15. Our hall pass system is a failure, it waste my time... me.. the never cut class person. If I want to cut one class I cut the whole day, screw hall passes.
16. My school's always don't have money for anything.
17. SHS student government funds other clubs... our student government focus mainly on... dances. Which proves that most students in my school doesn't care about academics, again.
18. My school rarely win any competition in scientific, computer science and mathematic field. SHS is the complete opposite.
19. MIT!!!!
20. There are more linux users in SHS than mine... it's usually directly proportional to average awesomeness density of students.
22. OMG I hate how suck my school is compare to SHS.
23. Most of the above applies for Ward Melville too