Board Thread:Support Requests - Community Management/@comment-26395974-20170316212303/@comment-27345308-20170319174555

They didn't lose their bureaucrat group, they [?page=User:Tricktron demoted themselves], and then their other rights were taken by a bureaucrat.

Bureaucrats can be blocked. Only Staff, Helpers can VSTF cannot, per Special:ListGroupRights, because they have the  right. However, bureaucrats can unblock themselves through Special:Unblock because they have  right (which apparently isn't the case on  but on any other wiki they do)