That doesn’t seem to be the intention here. The pronouns aren’t strange because “a gorillion genders”, but more to show that this is a narcistic arrogant rich person.
I see a lot of people make jokes with pronouns that aren’t the one joke, like identifying as a catastrophic failure. I don’t think that’s harmful.
Edit: this comment does assume the entire post is in fact not serious. If this person is serious, then it is almost certainly the one joke.
It would be right now, but the first step of Embrace Extend Extinguish is that: Embrace. Opening up to threads now might be extremely detrimental to the fediverse in the future, in the same way as happened with XMPP.