I don't think they'll win on SLAPP. From the court documents it's pretty clear that they had a problem with him long before the Psycho Post on Fetlife. They made no attempt to work things out with him before they went public. People who tried to defend him were shouted down and laughed at. They were basing their actions on anonymous complainants which didn't allow for him to defend himself in any way (you literally can't do that in any legal capacity). AND then they got him kicked out of that other group, and replaced him as the leaders. All of that screams malicious intent.I updated them to keep the post current. The hearing for the slapp motion is on the 17th so we will see what happens. This is Canada so they may very well win.
By the way, how did you find the original court documents? I see that he's also suing the girl who wrote the psycho post under a fake name, but the website wanted to charge me 6 bucks to view it. Did you get the docs for free? How do you get them for free? I want to read the docs from the other lawsuits he's filed. I think there are two other ones.