We're not 4chan. I say we get rowdy around any sniff of corporate interests. Let them know that any ad, sponsorship, or pushing of "advertizer-friendly" content flies in the face of the foundation they stand on.
We should prepare for war. What are some nice ways to make them go "absolutely not" when they get to federate? How about we research and spread info about any advertisers that are on threads to force boycotts? Maybe we can research more ethical alternatives to those ads.
If your server federates with them, Meta has already won and already siphoned your data when the federation occurs. Meta already runs two massive social networks at scale. No amount of rule breaking will bother them. They'll just stay their usual course of "act like your moderating but leave a lot of the worst stuff up because the outrage drives engagement"