it actually does give you a warning if you try to sign out.

yep. if you delete the app from your phone and restore it you don't lose anything. They should still suggest people to store their nsec separately i guess. They may be screwed if they press the logout button.

Been thinking about getting one as it's the easiest to use air-gapped main chain interaction you could have. But i rarely do any main chain transactions and i don't foresee that changing in the future. Typing in a complicated phassprase on Mk4 also makes me think twice if that transaction is actually need so it forces me to HODL longer :)

It made me think of when China wanted to extend lockdowns and then people got out on the streets and they backed down. If they want to squash this they need to do it sooner than later. The larger the adoption the more social unrest it will cause. But one country trying to squash it now could also backfire as it would be the best advertisment at a time when trust in governments is at its lowest.