I don't think one needs to be involved with any kind of community in order to participate in hypnotic activities. Spaces like that are just one of an endless number of ways to meet people, and in my experience, you really can meet people who are into hypnosis in all kinds of places. Whenever I bring it up at kink events, plenty of people are at least interested, if not already experienced. I don't know what sort of approach would work best for you, but I do know that making a 'clean break from the community', if that's what you want to do, doesn't mean you have to stop wanting and pursuing hypnosis.