I find that it's a bit of a pain to remove subscribed threads, etc. one by one by using the R. Is it possible to add some kind of check box beside the threads and then have a remove button or some sort?

And also, how long before a thread in the contributed threads section gets unsubscribed?

 

Membership would go a long way toward expediting this request. Sorry but I don't have time to address everything so member requests get the highest priority.