@grishka you can remove followers in the /relationships settings page. a block also removes followers. i believe mastodon implements both of these by sending a Reject{Follow} but it definitely also supports receiving an Undo{Accept{Follow}} (see https://github.com/tootsuite/mastodon/pull/8245 ) and may switch to that method in the future if it becomes the norm (?)

@grishka as a general rule of thumb most of the ActivityPub activities can be negated by sending and Undo activity with them as an Object.

Also please, please stop relying on what mastodon does for some specific funcitonality. Read the spec and make your own mistakes. :)

https://www.w3.org/TR/activitystreams-vocabulary/#inverse

@grishka as a general rule of thumb most of the ActivityPub activities can be negated by sending an Undo activity with them as an Object.

Also please, please stop relying on what mastodon does for some specific funcitonality. :)

https://www.w3.org/TR/activitystreams-vocabulary/#inverse

@grishka you can use https://www.w3.org/TR/activitypub/#undo-activity-outbox but Mastodon doesn't have it, yes. Mastodon implements only subset of the ActivityPub S2S API.