I hunt with two compound shooters (my dad and uncle) and I shoot at a club with 20 compound shooters and one guy who shoots traditional as well as compound. For the most part people are pretty good, but there's a bit of a gulf there - some of them no doubt question the effectiveness of my choice of bow. And I can't help but bite my tongue sometimes at what I see on the range - like adjusting a beginner's sights for the fifteenth time to try and make him more accurate, when he's got some serious form issues.
I've never made a snide comment to people, and I've received a few playful jabs (nothing an adult can't handle). When people ask about my bow, I encourage them to try a shot with it. Most of the guys immediately put their hands up and go "no, it's ok, I don't know how to shoot fingers, don't want to wreck your arrows, etc.". The ones who do shoot it usually remark on the lack of letoff and hand me the bow back. One guy went so far as to pick up a used recurve and try it out for a week or so. He shot poorly (as everyone does when picking up a recurve or longbow for hte first time) and with everyone else watching, I think he was embarassed. He ended up leaving the recurve at home because of it. I was a little saddened that he'd given it up, but he'd given it a shot.
In short, I try my best not to be snobby or negative (can't say I'm perfect, but I catch myself), and the guys I shoot with are fun and respectful.
What seems to draw the line with me is the difference between the guys who get out and shoot, practice and put some effort into it, regardless of their tool of choice, and the ones who dust off their rifle/crossbow/compound a month before deer season for the once-a-year practice session. If you're out shooting a compound with devotion, discipline and a respect for the animals you hunt, you can shoot with me anytime. Who knows, maybe we can learn something from each other.