Prediction: this will be rolled back. The ability to block people is what made twitter somewhat usable, if you're forcing people to interact with their stalkers that a very stupid and potentially dangerous move.
How about for $4.20/month?
The Best Feature is no feature.
Elon accelerated the use of blocking by sorting blue checks to the tops of threads. That created a convenient dickheads to be blocked list.
They can still be muted
Google and Apple will not allow this.
Fact. Section 1.2 of Apple's app store requirements:
The ability to block abusive users from the service
Unclear now if that’s users need to be able to do that or if the service needs to be able to do that.