Tl;dr: (1st reason) Ranting about things not related to Yahoo's position on DT.
There is a clear rule that users must not be given trust based on their posting.
There is no such rule.
Moreover a calm DT member would have simply asked via PM to cool down a bit and that't it, did yahoo ever messaged bapparabi like that ?
That would be a waste of time.
People do not get usually demoted for their personal opinions / actions non related to the trust system. Note: I did not verify the first claim as I'm not visiting that girlbtc forum.