Personally I had an account since 2008 and it got locked for no discernible reason. The website asks me to scan a QR code from my phone to prove I'm a human, and even after grudgingly installing the mobile app to try and complete this verification it just keeps throwing me into a loop.
Is Xitter still doing the "Your account was suspended for reasons, now you gotta dox yourself" dance? (EDIT: Yes, according to debazel's reply) That'd be a reason why "You could make an X account" isn't a reasonable suggestion.