My first response is a request to have them post the question on the forum. If it doesn't happen, then I'll often make a post about it in time, but I'd rather the member themself gets the credit for raising an interesting topic.

I don't know how much posting this thread will help, but no harm in trying.

ps. And for the record, those little asides I get from time to time from regular members aren't what I'm getting at here. Those really are personal notes given and received at a personal level and I truly respect the underlying principle of discrete communication involved in those.