I hope that this doesn't also mean that running a Tor exit node puts you at risk of getting banned (from HN or elsewhere). I think the people running exit nodes are providing an essential community service, and I would hate to think this might be how they're thanked.
Wikipedia bans Tor editors because editors who use Tor are overwhelmingly doing so to avoid bans. I'm sure there are a subset of Tor editors who are good-faith contributors, but, just like with HN, a bad-faith majority has ruined it for them.
Banned entirely or just from editing? Perhaps websites (especially ones that value intellectual freedom such as Wikipedia and Hacker news) could allow certain IP addresses that announce they run exit nodes the capability to have certain accounts (those of users who have direct access to the network) whitelisted.
