Btw, I just found the part of the docs that explains how their cancel culture type views have influenced the protocol. You can publicly block someone, and that is announced to your peers. So for example, if a popular leftist scuttlebutt user publicly blocks someone saying it is because "he is a racist/sexist/homophobe/whatever", there would probably be peer pressure for others to publicly block the same person.

If someone is bothering you or saying things you don’t want to hear, you can block or ignore them from their profile page (in the Options button). This will hide their messages and comments from you. You can loudly block someone, or quietly ignore them. A block is public and everyone can see it. Blocking is a way to demonstrate community norms and alert your friends to someone they may also want to block. Sometimes it starts useful conversations. Ignoring quietly is a secret action that only you will know about. It hides the person from your view.

https://scuttlebutt.nz/docs/introduction/detailed-start/#stay-happy-and-safe

It could be pretty useful feature for the right as well though. If some user was posting child porn and a peer publicly blocked them for that reason, I would appreciate getting a heads up so I could block them as well. Same if leftists attempted a raid on right wing "pubs" and users. They could be blocked.