@rikudou I think it *would* federate the deletion, if this was a post originating from the lemmy instance. But this is originating from an abandoned mastodon instance, merely mentioning the lemmy community. Lemmy admins can remove it from their community, but in the meantime it gets boosted on the mastodon side and that boost stays there even after the removal. This should be fixed, the moderation should be interpreted as an unboost, that seems to me like the most straightforward solution.