Without specific details, it sounds pretty much like any random Glassdoor report from un unhappy employee.

There is a history of the company suing ex-employees and vice versa. It's pretty ruthless if you break NDA - people get real jail time. I got reminded about that during my exit interview.

I left for financial reasons. They simply refused to give raises to virtually anyone after RUR tanked in 2014, even though 85% of the company's revenues are from foreign sources.