Have you e-mailed the moderator (B. Watson) or Randy prior to posting in this forum?
In fact, while I briefly reviewed the Cathay forum, it appears as though B. Watson did indeed shut down the threads where people in your view made fun of your grammer. That's what moderation is - if there is personal attatcks on a thread, the thread gets locked, and occasionally - if material is offensive, it gets deleted by a moderator.
It appears as though B Watson did both of those, exactly what Randy has "hired" him to do.