The risk is that people start treating AIs as if they were human
I cannot understand this. Unless AI is used to deceptively impersonate someone, how can a normal person treat "AI" as a human? The logo is right there, staring in your face. It only responds to prompts.
I know of:
Some other Android-derived projects are inactive: DivestOS shut down, CalyxOS is paused.
For 3, I think it has to do with popularity, unlockability, and the chipset.