Yes, I've been snubbed:
1. When I first started diving (a few years ago), I was encouraged to join this group called "DiveVets" in SoCal. They had an active message forum, and they dove every Wed. evening at a dive site in Redondo. I started enthusiastically posting on their board, went to the dives almost every Wed., met a bunch of them, made some friends and dive buddies, and did some great diving. But, while they presented themselves as a "newbie-friendly" group (and many of them were), some of the old-timers turned out to NOT be newbie-friendly...AT ALL. They started making fun of me for posting too much (calling me an attention*hore - no, I was just excited and enthusiastic about my new pursuit)...laughed at me for my newbie mistakes (I called a safety stop a "deco stop" once in a post...holy crap I got raked over the coals for that), and was just generally made to feel like an interloper in their private club. Especially the tech divers - they wouldn't even interact with this "noob". I guess I wasn't a good enough diver for them to consider me worthy of their attention. I actually ended up slinking away in tears, and never went back. It was so highschool-ish. To this day I won't even go to that dive site, lest I run into one of those rude jerks.
2. Also early in my dive career, I met a bunch of DIR divers. Most of them were perfectly nice people, but a couple of them had that "we're doing it right, you're doing it wrong and you're gonna die" attitude. It really turned me off to the whole DIR concept.
3. A couple years ago I traveled to Bali and I booked several days on a dive boat on my own. The first day, there was a group of DIR divers on the boat, along with a few other non-DIR divers. The DIR divers were in a corner literally making fun of the rest of us - for example, pointing to my octo in its yellow bulb holder and laughing at the "danglies", stuff like that. As the DM was working out buddy teams, one of the DIR dudes actually said, right in front of us, "Don't bother asking any of us to buddy with the dangly-divers." What a -holes.
Fortunately I'm rethinking my beliefs about DIR: a group of local DIR divers have set up a group event coming up in early October, where the "DIR-curious" can meet up with DIR divers, ask questions, learn about their gear and practices, talk to instructors, buddy up for dives, etc. They are being incredibly welcoming, and I'm very excited about finally getting the opportunity to learn more about DIR-style diving, without fear of being laughed at or made fun of. The truth is, I'm VERY interested in it, and am seriously considering taking a fundamentals course...which I never would have considered before, given my earlier exposure to "the attitude".
On the other side (have I ever been a snob?), allow me to quote another post in this thread:
Am I a snob? No, but I have treated like one on more than one occasion. The reason - meeting divers on a boat, chatting about where we have been. I have been asked, "where's the coolest place you have been?" or "have you ever seen sharks?" I answer honestly, telling them about Palau trip, drifting though a school of 40+ sharks, etc. or flying at mach speed on a drift dive in Palau at 100' depth, etc. or diving in one of the Blue Holes in Palau, pitch dark and 120' depth with sharks circling around us... yeah, I have done some really exciting dives. Don't ask me if you don't want to hear about them! Am I bragging... NO! I am answering your question.
Do I snub other divers? NO, never. I chat freely with every diver and I enjoy talking about diving. Do I care if you are diving doubles? NO. Do I care if you are a cave diver, sure, tell me all about your coolest dive! I don't feel threatened by the fact you do things I DON'T do.
I completely relate to this. I've been diving in some pretty awesome places around the world, and have gotten into some fun conversations on dive boats about all the places we've been. I suppose someone might have viewed that as being snobbish or bragging...but that was certainly not my intent. Just like robint, it was all just fun discussions of the cool places we've been and things we've seen. I'm just as eager to hear about everyone else's experiences as I am to share my own.