I would say (and I know that I'm in the minority on this by a wide margin) that the ongoing trend of "it doesn't matter, as long as I get the point across" only leads to lower expectations of everyone all the time. It doesn't take much more time to just try a little and make things much better. Must we always lower the bar?
(I know, I'm just a grumpy old man and should accept it and shut up)
I'm a grammar Nazi, but I only correct my closest of friends. I also realize I'm in the minority (actually, I become worried when I'm in the majority) and agree that society has become incredibly dumbed down. I have a hard time finding mediocrity to be acceptable.