This was very popular on Twitter for a while—tens of thousands of people subscribed to Wil Wheaton and Randi Harper's "anti-nazi/GG" blocklists using BlockToget

This was very popular on Twitter for a while—tens of thousands of people subscribed to Wil Wheaton and Randi Harper's "anti-nazi/GG" blocklists using BlockTogether, and then it all blew up when people realized Wil was just adding anyone who annoyed him on social media (including using a different tool to block all of the followers of anyone who annoyed him and then propagating that), and that Randi went on a spree of blocking anyone who disagreed with transphobic author Jesse Singal. And these decisions were completely opaque—I know personally a few independent artists who ended up on those lists, who spent weeks in the dark about why their commission revenue had suddenly dried up. I don't think the entire idea is completely unsalvageable, but I've come to believe that it's better to limit the "viral" nature of moderation decisions, at least without strong notification, appeal, and oversight—and that the more appeal and oversight you have, the more abusable by bad actors your moderation process is. it's a tough bind.