I asked almost this same question a few weeks ago here:

https://news.ycombinator.com/item?id=45628186

But the one thing that doesn’t compute is the commitment. There is a long term obligation now incurred by meta to use this infrastructure. If it’s a capital lease I assume this is now a liability on their books (and disclosures)?

Fade-Dance had a fairly reasonable answer to it:

Maybe they don't want to securitize their core assets and introduce a new favored class of investor. Ex: If they are securitizing their AI data centers as part of the initial capital raise, those investors would be higher up the capital stack. They would get the datacenter in a theoretical bankruptcy before the bond/equity holders got their cut of the liquidation. Intel securitized their new fab builds with Brookfield and Apollo and, as a shareholder at the time, it didn't feel great. No idea what the precedent is regarding Meta by the way, just a thought. Maybe they think that the lenders are a bit "overzealous", and they want to push the risk of things like write down on GPU racks entirely onto external parties who are apparently all too happy to take the risk. I'm guessing it's a mix of both, combined with the fact that we're seeing some copy and paste thinking. This is proving to be a way to get fast access to the huge private credit market. I would assume there must be some very wide deal flow pipes cranking currently, so why not tap into them if the demand is there in the other end.