It looks like you can trade insights for an unlimited account, so I'm assuming they actually vet your claims, e.g. ask for identifying information on who you are and what your company is, and ask to see evidence e.g. invoices, contracts. I mean, that's how I'd do it if I was wanting to build a platform with trustworthy, essentially canonical pricing lists, and charging a couple hundred bucks a year for people to see that info.
Related to that, I know that the SINE foundation[0] has been investigating using zero knowledge proofs for benchmarking.
I also looks like they recently released a tool concretely to allow for privacy preserving benchmarking[1]. (I haven't looked into the the contents of the repo itself to check whether they are actually using zero knowledge proofs).