It's the informal setting of the internet that is to blame, I think. I would imagine-or perhaps, hope-that nearly all on here do know proper grammar and writing form, but the internet does bring out the laziness in people. I'll admit, when I am on other sites, I do not always use capitalization. I know how a grammatically correct sentence should look, but I just don't capitalize like I should unless they're proper nouns that more then a few people might not know about. That aside, this a forum about a highly professional field. It would seem rather pertinent to act and type in a professional manner on here.