It seems clear that the Bitbucket devs paid bribes to Gitlab to ban this user to drum up anti-GitHub sentiment.

> Sure you can provide an alternative explanation?

In terms of a possible explanation for why GitLab would take an action, was it considered whether the (disturbed?) user violated GitLab's Terms of Service? Is the assumption that GitLab didn't just enforce their ToS, but that they're instead more likely to be secretly acquiescing to backroom bullying between companies over specific users?