Clearly we all do. And most intelligent people will also judge you based on this. Just because it's the internet doesn't mean you should make yourself sound dumber or more ignorant than you are. Present your arguments the best way possible. Of course a few grammatical will always happen and won't be frowned upon. Habitual errors that show a misunderstanding of the language you've been learning for 19 years however is a completely different story. Also just on a common courtesy level it eases the task of reading your post for many.
is it ezer 2 reed this
or to read this?
LOL dude now one uses "ezer", and im not THAT bad. I just type fast and cut corners when I type because its a habit and its the internet where 99% of people wont care(you intelligent people are the other 1%)
They did a great job with wikileaks, thats for sure.

Like I said if you guys were any way shape or form a threat, this site would not be around.