Happy to announce that delroth.net will not be de-federating Meta based on unrational fear of the corporate boogeyman.

Can't confirm nor deny whether the instance's admin team met with them under NDA though.

(Proactive defederation is absolutely dumb. If they don't act as good citizens and don't have / don't maintain a good moderation stance compatible with your instance, sure, that's a different story. But there's no way to tell now, and no reason to decide in advance.)