Trust feedbacks are unmoderated and DT members have no control over what feedback is left. They have every right to not trust people who are promoting a possibly scam exchange.
Well, it's kind of invalidating the trust system, now you never know if someone was tagged cause they were an actual scammer or if it's just because of a silly signature they decided to wear. Everything is "possibly a scam" anyways, it's cryptocurrency and there is no course of legal action of responsibility.
If only there was a way where you could see why someone left the trust feedback...
Just put ~blurryeyed and ~IconFirm in your trust list if you disagree with their feedback and it won't ever show up by default for you.