I would happily serve a tor exit point. However, while I think I can trust the intra-tor traffic, I think an exit node needs some... precaution. My precaution is that I would "teleport" it, more clearly I would route it to a vpn channel and masquerade on the VPN endpoint. The result would be that the outgoing connection from my exit node would come virtually from another IP, not from where the bridge nodes connected originally. Can it happen? Is it allowed? In the public list of the tor exit ...