Does anyone experience sign-up SPAM? I noticed many 'empty' sign-ups where new users joined but did not take any action, whatsoever. It became obvious that bots are running fake sign-ups.
Sharing a short description how to block the bots: https://medium.com/@frank42/spam-bots-and-fake-sign-ups-blocked-with-two-simple-tricks-5afffb9fd53c