Riddled with bugs? You make it sound like no one can use Cubase. The OP’s machine doesn’t meet the minimum system requirements, and after having a look through the his posts, I see no questions specific to troubleshooting his system.
He can sell his license, or keep it and wait till he has a machine that does does meet the OS requirements, or figure out how to get his machine up to it. There are people running Cubase 9 on Macs that old.
While it’s true that SB support is darn slow in certain regions, the other stuff is just whining and BS. But forum members entitled to do that, and as long as you follow the forum rules so one will stop you.
Anyway, it’s time for this thread to be lounged.