

If the same authority is doing verification that is also doing moderation and both ultimately in a for profit setting, that has conflict of interest.
We dont know how reliable bluesky moderation will stay. We dont know how they will respond to political pressure. We dont know how they will monetize past the growth phase and then could also argue a “service fee” for verification.
In a perfect world none of these would happen, but then everybody could still be on twitter and be fine there.
So it is not given to a centralized authority, that is guided by for profit motives and also does the moderation of its plattform.
Where this can lead was shown with twiiter. The moment the central organization is captured, the central authority will abuse the authentification for its own goals. Then instead of just having to check for the authentification to be reliable you need to question everything that is on that plattform as a whole, which is infinetly more consuming, but also simply impossible.