In addition to what everyone else is saying, in my experience a lot of it can be explained by one simple thing: the reviewers are just plain bad at their jobs.

In addition to what everyone else is saying, in my experience a lot of it can be explained by one simple thing: the reviewers are just plain bad at their jobs. I'm not trying to be mean; it's just my experience. They generally don't familiarize themselves with even the most recent previous interaction, so they repeat the same mistakes that have already been resolved. They don't know their own rules. They imagine things that aren't there because some word sounded similar to another one, and they don't have enough technical context to actually understand what the words on their checklist mean. Is that surprising? I don't think so! Think about what these people are being asked to do? They're repeatedly stepping through a tedious checklist full of stuff they barely understand, and then they have a choice of either waving an app/update through, or pissing off some developer. How many people with otherwise-marketable skills are going to stay in a job like that?