Why don't you answer them in this forum, where others can read?
EDIT: I speculate that he wants to answer privately, because he will say something negative about competitors. I think that's a bad practice - if you are willing to email a user a statement, you should be willing to make it in public.
For the record, he did not say anything bad about competitors. He just made it known that he really likes Trigger, thinks it's good unless creating something complex like a game, and offered me help if needed.