I'm curious about the Hulu Plus situation--why would they have a reason to block a non-exit relay? Was your relay a listed one or a non-listed one (a.k.a. obfuscated bridge, I think)?

The "strongly encouraged to change the password on the other service" bit is perhaps an open admission that they didn't salt; or maybe it's an admin lacking knowledge of the salt/no-salt situation and playing it safe by warning users. Still disappointing.