So you were just booted from the FB group not FB itself?
Here's my take...don't use FB for groups. granted I'm not a fan of FB with the way the algorithems work, lots of ads, etc, etc....why can't we go back to the good old days when we played Farmville with a few of our new friends.

I think it is a terrible platform for hobby type discussions which are better on message boards like this.
I get all the hate for FB, I've been trying a few groups recently and removed myself from one because they were filled with moderators who didn't moderate, they argued with you like toddlers or you get folks who say whatever they want which mostly is negative and hateful.
I will still use FB to keep in touch with my friends....the ones I know and not the ones that want to know me.