If you're on a forum, chances are you're debating topics. As such, if you want to appeal to ethos, you should use correct grammar and punctuation. Other people will, in all likelihood, ignore your opinion if you don't bother using proper grammar. Why bother listening to someone's points if they don't care enough to present their argument in a clean, easy to read manner?
I won't lie, if someone doesn't post using proper grammar, I ignore them. My gut reaction is to think that they are an idiot, even if they aren't. Even with this thread, I ignored everything in the original post other than the first sentence, because it screams stupid (again, even if it's not stupid).
Currently playing: Uncharted: Drake's Fortune, NBA2k11, Metal Gear Solid, Picross 3d
