@LeBraat We’ve been happily using “Login with Twitter” functionality on our site (POWtoken.com) since Oct 2017. We recently received a message saying our use case was not acceptable. Our new description of the use case is as simple as possible.
We simply want to allow users to login via twitter.
Our website and service does not contravene your guidelines, as far as I can see.
Thanks
Developers at POWtoken.com