Stolen from @vmstan
More analysis from @wiredfire:
It’s nothing to do with [difficulties in using multiple platforms]. It’s to do with the massive backlash they got on Fedi for their CEO being all Trumpy and somewhat horrible right wing. So they’ve run away because they were made to feel unwelcome on account of us not letting their BS fly.
Original screenshot is of the bio of https://mastodon.social/@protonprivacy and wasn’t a post (that confused me for a sec).
The corporation doesn't have to stifle 100% of their criticism, they just need to disseminate enough of a counternarrative, with PR statements that are technically true enough, to overpower the criticism so that it no longer matters.
(Plus, based on your last comment, I know you already have a "they can moderate anything they feel like" response lined up, if they do start clamping down even harder where they can.)