Maybe we should implement a PGP-style circle of trust on HN... =D
Seriously, why not create a GPG web of trust?
Because it's already easier without encryption to get people's trust from scratch than it is to impersonate someone else.
BTW, as an aside, I am really happy to see that both of you guys are over here.
LIAR!
Right, I get the irony of trusting the guy that says the other guy is the guy. I just though, I either missed something and a few people would pipe up. It's not scientific sure but suffices for my, "well maybe it's him, filter"