I think another commentator already addressed this above. Employers already have access to this information via the main site. They're paying us to get the data

I think another commentator already addressed this above. Employers already have access to this information via the main site. They're paying us to get the data in a spreadsheet they can plug into their internal compensation tools. They have access to the same data you have. It's an easy revenue opportunity for us and costs have certainly gone up as we've hired more folks. Our focus remains on serving professionals and majority of our revenue comes from professionals directly. Happy to discuss all this over a call as well if you're interested. Feel free to email me at: my HN username at levels.fyi. I'd also reiterate that HR / Eng Managers / Comp analysts often buy our data to justify internally that they should be paying more. An official way to provide the data allows us to be a data source to justify internal change. Otherwise employers are left to use stale data and remain unknowingly uncompetitive.