I've been to two cuddle parties. They are very concerned with consent, and I have to say that their facilitation is very well thought out. I don't think I'd put them in the same general category as other parties mentioned here, which I'd call a "bacchanal." For some attendees, it's a cross between a party and a form of group therapy.
Alchemy closed, only to have the space taken by Catalyst, which continues to provide events at a similar price point. It's just a new set of owners who had the cash to make the necessary fire safety renovations.
Wicked Grounds is finally on firm financial footing, and events there now pass around a donation jar (well, pumpkin) for local non-profits instead of for the cafe itself.
The Armory has become a high-end, upper-crusty events/classes venue for people (mostly hetero couples) who know nothing and are willing to shell out $150 for a class, but by pushing out the kink.com filming sets rather than displacing a local community venue.
Of course, this scene tends to be explicitly feminist, disproportionately queer/trans, and anti-classist (public events tend to have sliding-scale prices and opportunities to volunteer for free admission). I didn't read the article in detail, but a lot of the bits and pieces sound like an upper-class, MUCH more heteronormative, more patriarchal attempt to reproduce those experiences. (e.g. explicitly gender-differentiated rules, which tend to create a mentality of men chasing sex and women giving it.)