This one is short and sweet.
Want to rile people up using a single word? Just say, Facebook. Everyone hates it, yet a lot of people have an account, and are on it countless hours a day. Yes, myself included. If you're into the paranormal; be it an investigator, an author, a radio show host, or simply an enthusiast, most likely you have one for this reason: networking.
I have two Facebook's. One is personal, where I only invite people I actually know. Then there's my other Facebook by the same name that's for networking this blog; although I seldom post on it, mainly because I'm not on this blog often anymore.
Before I begin, am I saying networking is bad? No. I just said I do it as well. What I'm talking about is the irritating redundancy of people adding you to their paranormal groups. But what's so wrong about these groups? People can add you without your consent. So, essentially you can be added to a group supporting the KKK, Neo-Nazi's, or a sequel to the Paul Feig Ghostbusters WITHOUT your consent. Also, people are aware you were added and they may not know it was without your consent. That's one of the problems with these groups.
Another is, why not just make a Like page? That way you can invite people and it's THEIR choice. To me, the whole forcing people to join your group just makes you seem annoying. They will leave, you lose support for your group, what you're trying to teach people, etc. etc.
It's just annoying. Make a Like page. Give people the option to like your page or not.