Carl is not the one who put you on the black list. In fact, he is the one who support your works with his curation effort :).

From what I hear, there's been a massive hacking going on. So many account affected by it. And @steemcleaners is trying to help, they put their @mack-bot downvote to notify the victims.

To make it simple, check this post: https://steemit.com/spaminator/@spaminator/fiftysats-botnet-more-victims-found

if you find your name on that list, steemcleaners' discord server is your place to get your account cleaned from that hacker doin' with your account. They will help you out.

Cheers! :)