> PyPI asks for 2FA today, what might they ask for tomorrow?
Yes, slippery slopes are real because they happen, especially in this very tense and very non-rational geo-political climate. Yes, today it might just be "use 2FA with you still want to actively maintain your own package", tomorrow it might be "boo-hoo-hoo, you've followed/liked Putin/Xi/whoever the powers that be don't like, you're a threat to liberal democracy, we can't leave critical infrastructure in your hands, bye-bye", and there will be nothing for the package maintainer left to do at that point.