Please. Captcha by default. Email domain filters. Auto-block federation from servers that don't respect. By default. Urgent.
And yes, to refute some comments, this publication is being upvoted by bots. A single computer was needed, not "thousands of dollars" spent.
Honestly- I am surprised to find as much spam/scam/etc.... on a facebook group whose purpose is..... well, related to a small area in a midwestern town...
Also- I constantly regret taking on moderation and administration of this group. Moderating facebook sucks. :-/