If you reply to a post via PM, or contact a gentleman/lady on the ISO board via PM, don't you think that the least one can do is send a quick reply? I have gents and ladies PM me all the time, and no issue/comment is too trivial to ignore. If I reply to a post via PM, and I am not your cup of tea (or the lady I refer you to), just tell me. No harm; no foul. It just seems like common courtesy.