Glassdoor claims to have employees and job seekers in mind but simply have provided a space for disgruntled employees (often those who have been fired for cause) to simply post without any substantiation. The same person can post over and over again to suit their own agenda. They don't allow companies to respond. Who knows how many posts are real or simply due to either an employee pushing a grudge or for that matter a company doing their own promotion. I have heard of one company paying their employees to write negative reviews of their competitors. There simply is no credibility with glassdoor.