Oh dear. I like Code of Conducts. I put my pronouns on stuff. I moderate a largely LGBTQ community. I am absolutely, 100% in favor of DEI and making sure people in minority groups feel safe and comfortable contributing to the communities I'm in.
And I think those comment edits are a very bad look for the project. I don't know the people involved at all. Maybe the person applying to be a moderator is an angel of a person, and the people opposed to their appointment are awful. I have no idea. But what I saw there was someone raising concerns about a specific person's behavior, and their comments being essentially deleted as ad-hominem attacks. That doesn't sound right to me. The person wasn't saying "you smell funny so I'm ignoring your argument". They were saying "you did some things in a previous role that made me think you're not a good fit for this one". I didn't interpret it as an ad-hominem attack at all.
I hope this is a tempest in a teapot that blows over quickly.