Maybe I'm dense but it's not exactly Damore level stuff here.
Codes of conduct are only meaningful if they apply to core contributors with all the more force than occasional contributors. The chief accusation lobbied against a CoC is "oh you just use those to go after people you don't like," much like, say, the police sometimes use US law. The only security against this accusation is that the CoC is applied with more forgiveness at the lowest levels and more stringently to the people-at-the-top. It's not social justice; it's consistency.
Admittedly I think a bunch of HN would like the anti-SJW approach of "let's just burn the CoC and forget that it ever existed," and in that sense I suppose that it is "social-justice-ish", but these are orthogonal concerns. The one concern is that members of the Node.js CTC are beyond reproach for shitty things they do; the other concern is defining clearly what things are shitty.
The accusations would carry more weight if they were accompanied by links to examples of their behavior. At the moment, it reads like you're quoting him even though he probably didn't say that.