News for hackers. Stuff that matters.
Re:Russia Bans 1.8M Amazon and Google IPs in Attempt to Bloc... by maxerickson on Tuesday April 17, 2018 @09:39AM (#16858140)
He's written about the why. It's a tradeoff to make it easier for people to switch.

https://signal.org/blog/contact-discovery/

(not just individual people obsessed with privacy, the large numbers of people who can see the advantage of privacy but may not invest a lot of effort to achieve it)

Re:Russia Bans 1.8M Amazon and Google IPs in Attempt to Bloc... by pmlnr on Tuesday April 17, 2018 @10:18AM (#16858507)
XMPP could utilize your existing email address as XMPP address - that's a solution as well.