It is annoying, but what can you do :shrug: I usually just skip posts like that, and especially ones that use "lol" in place of "." (i haven't seen any messages like that here, thankfully). And usually don't bother with grammar policing, except once when someone picked someone for using MB instead GB, while himself typing "duel-core" :lmao:
I myself try to write correctly (and may edit up to three times get rid of the typos i missed

) but typos happen. The honest typos don't bother me, but leetspeak and text message like writing do. This is not instant messaging (though some ninjas occasionally get in before me) and there is no character limit to the message, there's no reason to write like that. I doubt it has anything to do with the intelligence level of the poster though, lazyness or just a habit, more like.
nd tb fir it usly tks a lt mroe efort 2 typ lik dis.
Atleast it takes a lot more effort to interpret that message :blink:
Edit: only one grammar fixing edit required for this post