We see more and more articles co-authored with a long list of contributors. However, as it is common practice to list the contributions of each author, we see that some co-authors have minor contribution, like only editing the paper, a supervising role, or providing a piece of equipment for the experiment. For some scientist these type of articles with minor contributions constitute more than half of their total publications. Those scientists will publish over 20 articles every year, which seems impressive, but in reality, they only have a minor contribution on each of these articles when they have one. Indeed, it becomes common to see scientists having a friendly agreement with each other (I put you on my articles, if you put me on your articles).
This contributes to create inflated CVs that can be unfair when it comes to hiring a new faculty, promotion, or tenure acquisition. It also dilutes the real contribution of the authors that did most of the work.
Therefore, do you think Editors and journals should ask to drop co-authors that didn't contributed significantly to a study?