You're the best judge to say if you want to stay or not, if you say you've got nothing to offer then I'm not going to dispute it. Having something to offer isn't mandatory neither, you can just stay and post along to whatever you like. Such a smart man is surely in contact with himself well enough that if he is an authority in matters he does not control, then he surely understands and know himself above all things, a complete understanding. That complete understanding tells him he is not able to offer anything and as such has indeed already decided to leave. So leave... or then ask people to ask him to stay, but if that is not asking for validation what is?
That kind of behavior belongs in sunday school: express your fake doubts in your faith and expect to be cuddled back into the safety of a club who pats you in the back.
You are striking me as the kind of twat who would be severely ticked off by being nominated and getting a vote for Twat Of The Year, even more so than @Slowlycatchymonkey. That's the main upside of you staying, that and the ride reports, much like @Slowlycatchymonkey.