yeah those are shitty botes claims to be cleaning the blockchain.
but infact they are indirectly making users leave the steem blockchain..

It was also happened with me my account with 354steempower got depreciated just becoz of this fuckin' mackbot and spaminator.
I showed them the proof that the author has no issues to post their content on steem. then his reply was the author also doing spam (what the f**k??)

well still I say reach their discord channel, might you get help if your content is real..