As a former NYC resident (and New Yorker for life), while a MTA Fediverse instance would be a wonderful thing, I suspect some government agencies in the US are waiting on the Supreme Court decision regarding their obligations regarding blocking.
The implications to the Fediverse could be huge, including possibly preventing instance level blocking! If I was in government in the US, I'd wait before making any decisions.
@serge
They could potentially escape 1st amendment issues if there was a way to keep posts reply-less.
A post marked "non-repliable" would then simply not show any replies on instances/clients that implemented this.
Of course, if they'd like to actually interact with customers, it's a loss.
There's a really good discussion of how ActivityPub handles replies here:
https://queer.af/@erincandescent/110271938380622364
@futurebird