@snarfed.org @activitypubblueskybridge @fedidevs @fediversenews
Wow. This is just such an epically bad call. I can't imagine reading the room this badly.
ANY privacy advocate you talk to - and I really suggest you talk to a few - will give you the burning side-eye for thinking you have the right to force folks to opt out.
And you should definitely look into the fact that you may be violating the GDPR. Someone else certainly will.