Perhaps this is not an entirely correct approach to positively address this issue. Why start calls for the removal of bob123 with DT? Conflicts are always easier to resolve by consensus. I don't think bob123 can be a person who is incapable of normal dialogue.

First, the situation that has arisen should be resolved between two opponents between whom mistrust has arisen. For an interested person, you need to remove all your emotions, you should not show your aggression.

But in another case, a person who is endowed with a certain sense of power should behave competently and with dignity.
It is not necessary to show who is in charge here, but on the contrary, try to understand why such a situation has arisen and try to positively resolve this misunderstanding.

Perhaps, to express your distrust, it is enough to leave the tilde, which has been standing for a long time.