

Visible post and comment scores are still going to produce some of this behavior. You may not have a total karma but people will still get dopamine from seeing their posts getting upvotes and be reinforced in doing the same again. So the same mechanisms of social pressure and uniformisation are at play. The worst being when people delete their minority opinion comments because of the downvote pressure.
Sad to learn they are majorly USA owned then. Their offices are still mainly in Paris and the data is processed in France. I have been using them back and forth for more than a decade. At the beginning, you could upload your own library (including copyrighted albums) and make it available for streaming to other people, it was a fun time.