This is an idea that I've wanted to do for a very long time and I have even experimented a little with the concept. The main issue is that the forums were designed for the "watching" feature, whereas the database was not at all. So to make such a thing work will require some actual re-working of how the database is programmed. Because of that, it's a pretty indepth project that I just haven't taken the time to tackle yet. And at the moment I have other ideas I want to work on before getting into something like that. I do want to do it eventually, though!