I know quite a couple of people making about 150k+/year and they live paycheck to paycheck. They spend money like it’s nothing and can’t save any money. This one person had to move back in with their parents after they lost their job after 10 years. They were making at least 150k/year for ten years and had no savings. They didn’t even have any debt. They just spent every dollar they made. There are a lot of people like that and I would imagine the tweet is referring to those personality types. Like I know this one guy that took an Uber just to go 2 blocks.
My old man was like this. It always felt awkward though because he made more money than a lot of my classmate’s parents combined but it didn’t show because he spent it so quickly. We rationalize it a lot by thinking about how he grew up in extreme poverty. That said, he stroked out when I was a teenager and there was nothing to fall back on afterwards.