Everybody can assume that thread/discussion subscription is going to be possible soon.
Likewise, these forums are not the place to discuss individual feature requests and bugs: the Moodle Tracker is clearly the best place for that.
Contrib plugin discussions should probably be attached to each Moodle plugins page.
Personally I think we can do with much fewer forums if these are assumed, which would vastly simplify moodle.org in general and make it much more friendly as a place for community support and general brainstorming.