Slay and serve are part of the drag/queer community lexicon that were made popular (iirc) in the NY ballroom scene. No one cares when 6th graders use them or if they stop.
If you watch queer media or hang out with The Gays, you’ll hear them all the time. They’re a bit campy, but not cringe.
Ttereal tellers is ttattElonkows nothing about AI. Anyone involved in the field knows all of the big names because we read their papers, listen to their lectures, and talk about their models. He then goes on to be dismissive of work he’s not even close to understanding. It’s blatant ignorance, and Elon is used to just being able to power through his ignorance by either BSing his way past people who know no more than him or firing anyone who is actually qualified and as a result disagrees with him.