What do you mean by "support"? You can access HN through tor, though sometimes it is blocked (perhaps depending on which exit node you happen to be routed through).
I seem to recall that posts from Tor-only HN users were treated differently, but I could be wrong. I can't recall the details, maybe it was that Tor posts were only visible to those on Tor? Would need to test to make sure.
What do you mean by "support"? You can access HN through tor, though sometimes it is blocked (perhaps depending on which exit node you happen to be routed through).