Dec 29, 2015, 1:29 PM

@Cirno said:

I...I'm confused. Help.

It's because they don't care for or respect the medium they are posting in.

Mind you, I'm not trying to justify the practice but I've (at times snidely, I must admit) corrected people's rouges and of course the obligatory your/you're antics on WoW only to have them grumble back something about this being only a game and obviously who cares about grammar, spelling or for that matter, manners?