Ron -
You're surprised Google (YouTube falls under the Google/Alphabet family umbrella too) and Facebook/Instagram are not cooperative? They ARE the man on the internet. (amazon/microsoft are just as bad)
the Groove is all about saying "Damn the man" and spitting in their eye, proving that there are ways other than what they tell us.
all of the crap/bots that end up clogging up the website are because of these things
linux/ubuntu should be everyone's operating systems, Don't use Google's Chrome - brave is the browser, and set the Search Engine to DuckDuckGo. Host your own website and video content - Wistia.com might be a good starting point for video.
You'll still get spam/junk, but by taking control of your digital presence rather than relying on the man to help you, you'll have better ways of making the bad stuff go and stay away so you can focus on doing your own thing and moving your ideas forward.
Further, you won't have to do these purges and put up walls around things - having to sign up to see the forum and the successes and solutions to problems is counterproductive to promoting the Groove. Sharing the information is the way forward. Showing it off will lead to sales. Walled gardens like Microsoft's, Apple's, Google/Alphabet's are counter to what we're trying to accomplish...and they profit from our failure.
I'll stop now. you know my email if you'd like more details/insight/perspective/opinion. I have enough to share