Who the hell appointed you as the grammar nazi of this forum?
This forum is for light hearted discussions and participants should be able to communicate without being expected to cross every "t" and dot every "i".
If you want to teach English, find a school or college that'll offer you a job.
Participants in an English forum should write legibly.
I don't give two hoots about careless mistakes, but when a Mandarin speaking poster writes so poorly that I cannot understand him, and when the majority of posters are like this, I feel morally obliged to step in to stop the spread of Evil Communism and to promote the Great Western Culture.