why do people still have to pick on grammar and spelling. it's not a english exam... its a forum. if it reads, its reads...
Because it's just... indicative, isn't it? Why would anyone start a sentence without a capital letter in any medium, let alone one where your posts will be read by hundreds of people?
Nobody is after perfect spelling and flawless grammatical construct but there tends to be a link between post quality and tendancy to forget what puncutation and capital letters are for.