Has someone ever trashed (as in deleted) your response on a question thread?

Yes, and once that happens I don't bother answering their questions any longer. If they only want people who agree with them it isn't much of a discussion.

Yup. Responded to my opinion (harshly) Then deleted my answer and I guess blocked me because I couldn't respond to the question anymore.

Deleted your comment? That happens here some people delete the whole post

Many times.

Oh yes.

Actually recently had a racist do that to me, so I blocked him.