Reply to Marker for new messages
A subscribe-to-topic feature is an okay idea, but it isn't a deal breaker if you don't create one, especially in the beginning while the forum communities are still small (it might be unneccesary). But if the forum communities start getting really large, with a lot of topics and posts added daily or even hourly.. it might be nice to be able to subscribe to our favorite topics (i.e. subscribe via email). I'm not sure if I'd use it though. Probably not at first.