They require phone number for registration. Unless that changed recently, then please correct me.

It’s also possible you use some other service that uses ChatGPT API, instead of OpenAI ChatGPT itself.

I guess we have very different definition of tolerable. Not only they collect everything you do there and retain it indefinitely, but they share everything with their affiliates and vendors per that privacy policy. And on top of that everything is tied to a phone number (I would also assume they block VOIP, but haven’t checked).

Have your read ChatGPT Privacy Policy? Most sane people that read it wouldn’t use it.