I get your point. The app does ask for quite a lot. I believe they do this mostly so that they can share your music when you post it. Which helps you in a way and of course it also helps the platform itself. What do you mean by update account permissions? I personally don't have a verified twitter account (or at least have not used it).
It is possible to signup without using the social sign up (signing up as a listener is the same as signing up as a muscian) but it will significantly slow down the verification process.
Thank you for the support :)
We are here to support. The initiative is great, but the technology is new and as such it's expected to have it's child diseases. Anyway, it's promising technology. Looking forward to see this as a future of itunes.
You are most welcome.