I'd say most bunters (not all) are right at the same level as the worst pirates (/setmsg pirates) when it comes to RP (or lack of).
I had a run-in with a BHG| hunter yesterday that came to the Taus to kill poorly equipped new players - I intervened in a Dreadnought, and the BHG| dude went on a trash-talking spree not shutting up and not disengaging. He kept trash-talking and he kept fighting the newbie player (who I kept feeding regens) within range of my guns until his Orca exploded.
Maybe he RP'ed a complete maniac so hellbent on killing unlawful scum that he is totally self-destructive - but then again would the guild really hire a guy that's so dim-witted and costly in gear, going up against dreadnoughts alone in his little gunboat when he has every chance to avoid confrontation and getting popped?
All the RP I got from him (and most hunters) was /setmsg RP and a barrage of trash talk, and really it's getting old (the trash talk). It doesn't constitute RP in my book, but I know it lives up to the server minimum requirements (and only that). What is also striking is how some people always enter trash talk mode if other players are flying a bigger ship than them - it's incredibly out-of-character (like how often did you see Luke Skywalker hail the Death Star to whine about its size? Or how often is Al-Qaeda phoning the White House all teary-eyed to complain that the US have Carriers in the region?).
I think what some pirates and most hunters need to realize is that RP is not a means to an end (the 2mil or blue msg)- RP should be the goal itself!