This is one of the most obvious potential cases of purposeful sabatoge. They were probably bribed by other big businesses to destroy their reputation so people would stop using the site.

There's nothing businesses hate more than their workers having negotiating power, and wage transparency gives them more power than they had before. There's a reason why it's considered "rude" in the US to discuss wages with co-workers; I always make a point to discuss my wage with all of my co-workers, since it's illegal for businesses to prevent that discussion.

In most other countries, it's the norm to openly discuss your wages; unions are also more common in other countries. It's just standard toxic workplace cultures trying to prevent people from getting paid what they're worth, or god forbid, forming a union.