Which anti-abuse initiatives on Steem do you know?

Alright, I've received an amazing response in my previous post asking my fellow Steemains about curation-initiatives.

And I'd like to do it again, however this time regarding anti-abuse/spam accounts. Specifically against plagiarism & spam.

I'm already aware of @steemcleaners, @cheetah, @blacklist-a, @buildawhale blacklist & @spaminator.

Are there more? If yes, then please let me know if they downvote (e.g. steemcleaners), comment (buildawhale) or upvote (cheetah)?

First useful answers receive an upvote.

Go.