Separate from the review issue, but does it seem that Glassdoor's salary estimates are low? The estimates in Glassdoor seem lower than those in levels.fyi, e.g., although it's hard to make an apples-to-apples comparison. It may also be because those who are lower paid are more likely to post, but it also seems worth pointing out that it would be in management's interest to report a lower salary estimate.
I was just wondering about this myself. I'm not sure if there's a clear incentive to game salary information. If a company posts a lower-than-real salary, they risk seeming less desirable than their competition to candidates, who may then apply elsewhere. If they post a salary that exceeds what employees are typically paid for the position, candidates will accidentally high-ball when asked about salary expectations.
Falsifying details about employment happiness and health of culture do have clear benefits for deceitful companies however.
I think a lot of glassdoors data is really old. Just looking at some of my submissions, my 5-10 year old contributions are still showing up and seem to have a pretty large impact on titles where there's only a handful of contributions.
