So, for example, in biomedicine you often have lots of people on a paper who might only read a draft, make some trivial suggestions, and then be added as an author.
As a result, there's this pressure for large groups to form, where everyone is added and everyone can cite each other.
This doesn't mean the projects are bad, but it does lead to individuals with large citation counts primarily because they find ways to add themselves to everything, regardless of their level of effort. People should get credit where it's due, and large projects involve lots of people. But what defines a "project" has become very vague.
I've become extraordinarily disillusioned with academics. Science gets done but the rewards seem to filter preferentially to those who are able to game the system, and the system exists out of a need to make one's self look as productive as possible, in areas where contributions are generally necessarily tiny or nonexistent, even among very competent people, because the problems are hard and because so many people see the same things at the same time.