It's a forum, I think some things will be answered and some won't - that's just the nature of what it is. Usually, when things aren't answered, it's because it's been misunderstood or asked before. It's also possible no one knows and in that case, it'll just stay open until someone does. The only exception to this is The Newbie Guide and Suggestions & Feedback, where we aim to get a staff member to answer.
Can you clarify that I've understood that you'd like some sort of list of users that would be in a group that could tag multiple users and see if they have an answer to the query? If so, it's not something we're looking at right now, but if not - could you please provide a bit more detail for me?