@seahorse @BendingUnit @snarfed.org pro-active statement that doesn't even knowledge of your network: bridges like this are passive, they appear and operate just the same as regular AP instances, only difference is that they're translating the requests on the other end to Bluesky and vice versa.
It's not live yet because it won't function until Bluesky federates, once they do it'll appear as a completely separate Bluesky instance in their network.
Bridges already exist for other networks as well, the only reason this is new is because Bluesky hasn't federated at all before.
As far as how to deal with it, if you don't want to see Bluesky accounts you can block the domain from your user account, or if an admin feels it's unacceptable they can block the domain server-wide. Both just like you can with a regular AP instance.