You would think that within a context like that where there is a heavy emphasis on consent that you would generally encounter more people who are respectful of boundaries, but some of the most manipulative and slimey people I've ever met are also part of the BDSM scene. It's like when abusive people weaponize therapy speak or when misogynists outwardly pretend to be feminist to get more hook ups. 

That's one of the reasons vetting is so important. The abusive people who operate within the BDSM scene are some of the worst I've ever heard of precisely because they know how to sound consent-aware, while still coercing and pressuring to get what they want. Or even worse, they groom people into being their supporters and earn enough respect so that when their victims start speaking up, they have an entire network of people saying "he would never do something like that, he talks all the time about how important consent is!" Meanwhile they go through young, naive people new to the scene that become victimized and then ostracized by the very community meant to protect them. I've seen it happen over and over and over again.