Example: people mix up they're and their, your and you're, it's and its all the time, simple mistakes, no big deal, but it can alter how the sentence is read, thus changing the messege.
I find that slang words are thrown around and used for everything when the idiots that use them can't think of a proper word. A popular one? Gay. "Gay" used to mean happy, gleeful, joyous. Now, for some reason probobly involving an idiot that needed a dictionary, it means homosexual, and people use it to describe things they don't like. For 14 year old boys, it would seem that using this word will gain them some kind of respect or reward, that's the only reason I can think of to want to say a curfew or something is interested in the same sex. (which I imagine is another kind of timer, wtf?)
Moving on, anyone that's ever played an online game (If you're reading this, you're in one now xD ) has probobly seen the word noob several times. This word used to be spelled "newbie" for someone that was new to a game. Someone found that you can spell newbie (noo bee) as newb (noo bee) and then noob (noo bee) and still pronounce it the same way. Naturally, someone who had never seen the word saw it spelled as "noob"(noo b) and people have been throwing it around (mostly incorrectly) ever since.
Noob, however it is spelled, is meant to mean someone who is new to a game, but now it is a derragatory term for someone you don't like, with that said,

More work by above team, b***h used to mean a female dog in heat, now also a derragatory term for some reason. Emo is tossed back and forth like some ugly frisbee, used to describe anyone that isn't taking drugs to deal with emotions.
Ironic when you think about it.
Anyway, people don't seem to know how to use their own language in america, some are foreigners that can't quite speak the language, but feel they have a right to make us try to translate their mixed up bulls@%t. I know I can't tell foreigners to learn the language of a country before trying to communicate with it, (because I don't know how to say it in all their languages or trust me, I would) But I will tell those who can read this. If you're going to bejing, you'd better learn chinese, If you're going to mexico, learn spanish first, if you're going to england... you're good, but prepare for funny dialects.
Some would call me a grammar nazi for all this, but I argue that it's better to be a grammar nazi that knows how to communicate than a gibbering neanderthal waving his arms like a halfwit. If we don't use languages corectly, all words lose their meaning, no one knows what anyone is saying, and then where are we? The ability to speak coherantly is important, whether the 14 year old imbeciles agree or not.
BOTTOM LINE: If you don't speak like an intelligent person and use words with their proper definitions, please stay silent.
That's this week's rant, I'm Varmeip, Goodnight.