Defederation questions/requests should be made in private, at least initially. That is to avoid turning an instance, which may temporarily not be actively administered/moderated, into a hotbed of illegal posting.
As it stands, any concern troll can turn a random small instance, which may not have an admin around for two days or three, into a hotbed of illegal or potentially-illegal activity, simply by bringing attention to it with a public defederation request.
Even with the presumption of genuine concern, the effect and end result will be the same.
Defederation questions/requests should be made in private, at least initially. That is to avoid turning an instance, which may temporarily not be actively administered/moderated, into a hotbed of illegal posting.
As it stands, any concern troll can turn a random small instance, which may not have an admin around for two days or three, into a hotbed of illegal or potentially-illegal activity, simply by bringing attention to it with a public defederation request.
Even with the presumption of genuine concern, the effect and end result will be the same.