A hiring company.
Now... think this through for a second. When Elon has opinions to share, they're always in his favor. But they're not always directly what he says, rather it's the aftermath of what he says, as hundreds of millions are listening to him.
If he's so desperate to hire good developers that he'd pay millions to get a tiny hiring company's employees working for him, while literally not paying Twitter's rent and bills... is he really trying to keep Twitter small at this point?
Or is he trying to grow it? But how can he have more people to pick from on the market? He recently complained that hiring is very hard right now for Twitter.
But what happens if he says "hey what I did was awesome, everyone should fire their developers... so I can hire some of them... I mean... I didn't say this. TWEET DELETED".
Every company that follows his advice, even partially, will collectively flood the market with developers, and he improves the situation for himself being able to pick better devs, and also at lower salaries, because when you have lots of unemployed devs, salaries go down.