alt Hacker NewsIt's a multiparty problem. I really wouldn't want to post negative experiences of companies under my and their real name while still looking for jobs elsewhere.
Glassdoor could only possibly be accurate because it was anonymous. Of course, that also makes it easier to fake.
It'd actually be easier for a government app to verify identities and (especially if mandated by law) protect your anonymity.
The private sector is great at lots of stuff but running a clean marketplace isnt one of them - the incentives are off.