Ah, the filter never ends

No, i mean lack of capital letters in general.

being forced to talk like this doesn't mean people will just randomly start talkin liek dis.

Well, it does influence the use of internet-slang English and horribly typed English (or at least in my opinion it does). The more you limit correct grammar, the more brainless and careless people get about things. It's like the butterfly effect. If people get lazy about one thing, they'll eventually get lazy about everything else.