Note: Deano has included this hack into Version 1.2.0 of Cheetah. There is no need for you to implement the hack as shown, but I'll leave it here for archival purposes.
The yellow keys give your members too much power. They can block out their entire profile to every other member and possibly cause havoc. They're easily removed.
It looks like the BOTS have figured out how to bypass Google's "Tick" Recaptcha. I'm using the Day of Week or Friday Captcha and it seems to have fooled them.