* teor:
I don't understand what you mean by "an exit". Do you mean "the Exit flag" or "an exit policy that allows some ports"?
I put "an exit" in quotes because I think there are different interpretations. I consider a Tor Exit to be a specialisation of a Tor Node which allows connections beyond the Tor network, based on exit rules, and which actually is utilised in that role, based on available bandwidth and consensus weight.
I agree, but each operator can make their own choice.
Sure. Deciding to sell bycicles from an inflatable raft at Point Nemo is a choice one could make, but is it a *good* choice? ;-)
-Ralph