What's up with 4chan and this anonymous crap and the wierd things they put on there?

I don't understand 12chan, 2chan, 99chan or any of that ****. It's confusing..and lately they've been putting stupid things on 4chan lounge like "Bow down to your cacti" or something like that...what the hell? These people are wierd and its like they have a language of their own. Its not even worth all of that. Someone should shut it down, it has child on some of them..its just a waste of space..