I thought of this when I read this:
Well, what I would like to see would be a way to be Alerted when
You would be registering for an Alert (maybe you could choose email or Alert or Facebook!)
I think this could be a way for people to come back to your site .... and be alerted to come back when something THEY want gets done ! They'd probably be excited to come back !
Everyone wants a way to get "Infrequent visitors" to come back from time to time .... and this is a way for them to get the information they want (which they would probably forget)(and information in most forums is impossible to find) as soon as it is done ! Nevermind Newsletters they aren't interested in .... get them back for what they WANT !
Certainly this is an "Ad Hoc" way for people to communicate about things getting accomplished (other uses I am sure)
(actually I think the Mike and Kier would like this ! - Hey Kier, alert me when you get that code done - Mike).
That Getting Things Done (GTD) guru man David Allen would probably love this !
It would also help posters to gauge the level of interest in an idea (more signups = more
Maybe a "Silent Alert" signup would help, you want to be alerted, but dont want your name showing up.
It is also very much in the spirit of Xenforo's Like.