Same here. Glassdoor keeps saying everywhere that companies have no influence on the reviews. But they absolutely allow removal of bad reviews, even going as far as contacting our HR team offering it as a paid service.
Whoever pays, has the power, so for Glassdoor that's obvious. Companies can basically "report" anything they don't like, and they do.
My employer keeps asking us to "leave honest reviews" to help with hiring efforts. In practice that means they want us to leave GOOD reviews to raise rating scores on websites such as Glassdoor.
At my 100% remote company, we got a negative review from someone saying the bathrooms were dirty in our office. (We've never had an office, but there's another company with a similar name as ours that does)
We eventually got it removed, but it took an extreme amount of effort to convince them to take it down.
I can't imagine how difficult it would be to take a review down that isn't as easy to prove illegitimate.
This was in 2020, so maybe things have devolved since then..
It's very easy, their sales team will reach out and tell you about the paid options to manage your company profile. That's why the whole website is so dishonest. They keep claiming reviews are not influenced by companies and at the same time pressuring those companies to pay to cleanup their profile.
Somehow it could be possible to created a "trusted review" system, based on existing tools. See "Comments & reactions" on https://profiles.joblist.today/companies/, where login is made with Github, and peers can "upvote" comments with reactions.