That’s a fair criticism. I prefer using Session with better multiple device support and without waiting for Signal to finally stop using phone numbers.
When using either, disappearing messages should be enabled.
The part about PFS falls down, for me, when you assume both that keys can be cracked in some shorter than normal time-frame, and that the new key (per message, or less often) won’t also be cracked quickly.
This is a fairly easy answer. Signal refuses to take shortcuts that others are happy to use.
You may find this virtuous, but I’ll argue that it isn’t.
It’s much better to start by having windows that don’t lock than to keep holes in your walls all year while waiting for windows that are insulated, lockable and can be cleaned from the inside.
Signal leaves the holes until they finish the insulated window that also creates electricity.
@turkishdelight
@celmit