Ask HN: Why is there no developer review site avoid cold interview experience?

There are ways to review an employer, for example, glassdoor reviews. Why don't we have developer review website? I know a few guys who are good at interviews but never get anything done at the company after being hired and similarly, I know a few people who get done many things but can't pass a rigorous interview (with tough DS/Algo questions).

When you are hiring first few devs for a startup, almost all of them ask for equity, I am not saying it's bad but you can't hire some guys based on interview alone. And some startups solve this problem by having a probation period. Why can't we have a review system where other fellow developers who've worked with you, vouch for you, for example, a developer can "approve of" or "disapprove of" for another developer. It might not be perfect. Any thoughts? I know this is far from perfect. But it offers some signals which can help bypass cold interview experience (based on tough DS/Algos which you may never need while working there).

Thank you.