Perhaps if you thought more about what you are typing, rather than everybody elses "English", these little errors may not happen?

Sadly, your apparent optimism is unfounded; typing skills (or lack of them, as in my case, to which at least I have the grace to admit) and linguistic ones are far from the same thing. If I didn't think about what I was typing, I'd be unable to post anything (go on, there's a reply waiting to escape there, surely?!). In any case, I spend very little time thinking about others' English usage.
Oh - and while we're about it, why not pop a non-grocer's apostrophe between "else" and "s"? (well, I think you asked for that one...)
Best,
Alistair