I want to be able to find all threads where both {username} and I have participated in that thread. This would be the intersection of {username}'s threads and my threads. Or better yet, I'd like to see all questions by {username} where I have
participated. This would be the intersection of my thread with threads that {username} started.
This is a simple social concept. "Show me all the threads you and I have both participated in". A kind of "our history" feature.
My reason is that sometimes I see a thread from someone and I vaguely remember what I think is the same topic and I want to see if I've talked with them before about it but I can't remember if we have and I can't remember what the context was. This
would help me regain context to help users that have ongoing problems over a longer period of time.
What do you think? Social stuff is popular these days. How about it? Or is it already possible?
