Oh, unfortunately you are right and I have also noticed this trend lately. Moreover, some steal information from articles, and some take information from forums and simply add it to their articles on the medium. It seems to me that it is much easier to leave a link. By the way, this has also become very popular lately and it is done in order to increase views. That is why I personally do not click on other people's links. In general, if you want to increase traffic to your article page, then I advise you to read the tips in this article. And most of all, Views coming from Google.