The community manager has told me that there are no further updates planned for the forum and the request for a facility to mute other users may be considered if they ever make future developments.
Given that the advertised new forum was really just a minor upgrade / patch not a new forum and that no new features were added at all, I personally don’t believe we will ever see this feature added.
I know a lot of people here are quite fed up with me and I am tired of being triggered, so I think it may be time for me to accept this isn’t a forum for people like me.