The shift from the tem "Unlimited PTO" to "Discretionary PTO" has happened because early proponents realized it wasn't really unlimited, and they didn't want workers to think that way. But the "unlimited" term is still used to sell it, and still often appears in informal recruiting conversations.

It's just so slimy.

Reminds me of "Unlimited data" plans from ISPs, which are actually limited, but they just don't want to tell you about them.

Anytime something is marketed as unlimited, it's not.

Yeah, the current reality of it isn't great at a lot of companies. I've been places where it was done well though. For instance, having a mandatory minimum number of days of vacation helps combat pressure to not take time off, and leaders who openly encourage people to take their time helps combat a culture of not taking time.

It started as a positive thing, intending to trust the employees and give flexibility. Unfortunately, like a lot of things, sleazy leaders turn flexibility into manipulation.