I think the problem is partially the fault of companies that insist, at least where rated interactions with employees is concerned, that every interaction should be five stars, which in a system where the stars are all meaningful like this, is simply not realistically possible. This gives people the sense in general that rating anything that you don’t completely dislike anything less than 5 stars is a bad thing to do, because it risks hurting some employee somewhere who doesn’t deserve it.
I think the problem is partially the fault of companies that insist, at least where rated interactions with employees is concerned, that every interaction should be five stars, which in a system where the stars are all meaningful like this, is simply not realistically possible. This gives people the sense in general that rating anything that you don’t completely dislike anything less than 5 stars is a bad thing to do, because it risks hurting some employee somewhere who doesn’t deserve it.