clients pick you as an exit node if there's even a chance you can exit there
When clients don't know the IP of foobarbaz.com:80, they pick a random exit node that will allow any exits to port 80. But if they pick a node that allows w.x.y.z:80 and then rejects *:80, they are almost certain to be told "here's the IP, now go somewhere else." We should short-circuit this process and only pick exit nodes that accept "most" IPs for the port in question.
[Automatically added by flyspray2trac: Operating System: All]