Comment 9 for bug 376520

I've changed the bug description because while I fully agree we need to divorce them from teams and make them first class objects, there is a small-buck-big-bang UI improvement we can make sooner. By adding a button to do immediate in-place join+subscribe, we can easily make it much easier for people to participate in mailing lists. Let's do the simple thing first while we continue to design the ultimate interaction model.