I always expect that, because I always read terms of service. This is an excerpt from Github ToS:
>GitHub has the right to suspend or terminate your access to all or any part of the Website at any time, with or without cause, with or without notice, effective immediately. GitHub reserves the right to refuse service to anyone for any reason at any time.
So I don't understand why people give attention to some problems with my account, why anybody should give a clue and why this is a topic for discussion. Nothing unexpected has happened. I never stored sensitive data on github, never used it for OAuth, and this account does not have serious value for me. I have all the data backed up locally, on external drive, on several others git hostings and on remote computers. I don't know the reason yet, Github did not send any notifications before shadowban and I did not receive a reply from support yet, but I'm pretty sure that neither GoodbyeDPI nor Super UEFIinSecureBoot repository are to blame. Most probably this is false positive of their anti-spam system.