* Most of my papers have had thoughtful comments. Typically, they improved the paper, sometimes a lot.
* I have very rarely been asked to quote a specific paper from a specific author. Of course, pointing out important references that the paper has missed is part of peer review, so this would not necessarily be evidence of corruption.
* There are loads of crap pay-to-publish predatory journals, but publishing in those journals would harm my career, not help it. Nobody cares about them.
* I've not experienced people rejecting papers from rival labs or departments. I don't say it doesn't happen, but I haven't experienced it.
* I myself try hard to give high-quality reviews that explore the paper's value in depth.
I am from one particular discipline, country and subfield. Others may have very different experiences.
Again, I am not claiming academic peer review and publishing doesn't need a lot of improvement. Removing the parasitic mainstream publishers like Elsevier and Springer would be a great start.