Its a Steemit group that looks to notify users about plagiarism. Since this is a pay to post site, copy/paste (or sharing) for profit is considered theft and or criminal. People migrating from twitter/facebook usually don't understand, until they get tagged as above. I think there should be better info provided for new users rather than that paragraph (above) just appearing on a post. But I have quit steemcleaners. I didnt expect to be attacked personally.