The lol filter is the greatest thing the modern administration has created. It serves so many purposes.

a) It confuses people, making them spam more allowing wonderful people to step in and warn them.

b) The term "lol" is used so badly, because if people actually laughed at all the things they claim they do... well I can't imagine them ever stopping- they'd be pretty wierd.

c) "I cried aloud with mirth and merriment" is such a wonderful phrase.

d) and uhh... look above.