I agree that typos should no longer appear in our posts.My browser is Firefox, and it underlines unknown English words as I type them. Although I see that the spell checker does not know the words "imperfective" and "perfective." =:^)

But the problem is that you do not know what you do not know. That's why people make mistakes (not counting typos -- and the your/you're error is not a typo, it is an error in grammar). I have been studying, reading, and to an extent writing Russian for 40 years and still can barely put a substantial sentence together without an error. Just yesterday I used an imperfective verb where it should have been perfective and was immediately corrected (on line, that is). And I am still not totally sure that the imperfective would have worked in the context.

People generally think that they "know" English after studying it a year or two. What most don't understand is the 80/20 principal -- you learn 80% of the material in 20% of the time required for mastery. The remaining 20% of the material takes the remaining 80% of the time. So it's easy to become overconfident. And, as I see it, people post and various errors appear, maybe because of carelessness, maybe true error (as my use of the imperfective -- I originally wrote using the perfective verb, but then second-guessed myself). I personally can't imagine how foreigners learn to spell English. It's on a par with Chinese, where you have one spelling/character that can be pronounced six ways from Sunday.

As of right now, sarah has made only six posts, so I don't understand why she is complaining either.