Re: When and why do you use correct grammar/spelling online?
About two years ago, I typed without capitalization or punctuation mainly because I was a noob to the internet and didn't care how I spell. But I realized people didn't like improper grammar, so I started typing normally. Now I'm a Grammar Nazi. :P
But on something like Facebook, I usually type normally, though sometimes I don't put punctuation. Just on Facebook though. And even then it's only in chat, not in wall posts.