Can you elaborate? Who is crony to whom here? Everyone in the exchange gives the information willingly... people here talk a lot about salary sharing, so here you go, your employer is doing salary sharing with other employers. Someone else facilitates it and makes money. What's wrong with that?

I know why I am going to freeze my data, I don't want employers to know my past salaries - but that's anti-capitalist, I am removing information from the market to give myself an edge in negotiations, and to propagate inequality. Equifax don't have to do it on "capitalist" principles, but they allow me to do that... the only crony thing is the opt-out form I guess ;)