What I do, is every member with a 2 month inactivity, e-mail them, then a while later, those who don't respond to the e-mail, delete it. Well, it's what they wanna do. o_0 If they register and leave by trying it out, ok then. Let them leave. They miss out.
I still say we need to have a special banner, just for guests, to persuade them to join. We could use Grievers one he made.