Lighten up about the spelling/grammar. As I have said on this site before, I used to be fairly intolerant of posts where there was poor spelling, grammar or punctuation. That is, until my son was diagnosed with a severe learning disability: disgraphia, or written output disorder. He can't spell his way out of a wet paper bag. Funny how seeing it first hand changes your perspective.
Yes, some individuals are lazy and resort to texting language. Yes, it wouldn't hurt for some individuals to use the spell check. But for some indviduals, it's the way their brains are wired.
Let it go.