[joshuamorton]

> this is wrong take, once higher paying companies find out they could pay less due to competitors, they will.

Companies already functionally share compensation information via companies like Radford. You pay a hefty fee and provide your company's info, and in return you get descriptive statistics of the market.

Google and facebook don't scour job boards when determining pay scales, they pick some percentile of the market per these surveys and set compensation at that level. As a result, the companies already have transparency, employees do not, so they can only really gain.