It's a pity that #XMPP extensions (#XEP) are so badly understood and there is so much misinformation on them.
Because the principle is really great: you have an idea, you explain it, and how to implement it, it's discussed, and evolves with feedback. Anybody can do it, you don't even need to be #XSF member.
Maybe later, an other idea, or a better version replace it, and it works thanks to the neat discovery mechanism of XMPP.
One of the main reasons why I've stuck with this #protocol.
To add to his points, I want to encourage everyone supporting pre-emptive blocks to look at that from the POV of our relationships with people using fediverse servers owned by DataFarms, rather than our antipathy to their owners.
@strypey sorry, how does connecting with other networks relate to moving services with connections intact?
#XMPP has #XEP, for servers to specify what features they support. Unless AP servers start enforcing that supported #FEP s be specified, you don't know that a new kid (bully?) on the block will both federate and support account portability (or when they stop supporting something).