@pixelfed In terms of the actual service, I was thinking of using HTTP sigs to validate admin actions and allow them to comment/provide context during the process, and this would be publicly viewable via the website.
Instance A: Blocks Instance B for federating with Instance C
Instance B: Blocks Instance C and requests validation
ADR service notifies Instance A that Instance B complied with their conditions
@dansup @pixelfed maybe this is a bad place to start this discussion. But isn’t blocking someone because they federate with someone else a bad reason? The risk is creating small bubbles everywhere instead of a sort of mesh which is bad for discussion