People report everyone just because they can
Same for me, i dropped from 10.5k to 6.7k now climbing back. The problem is once you hit a certain behavior score, it will freefall from there because people will keep reporting you no matter what. So it is 10k or not 10k.
People above 10k wont notice a difference because players at those scores usually commend each other after games they win. However below 9k for example, you will get reports for loss and no commends for wins. That is a problem because you cant climb back normally. Only way to climb is to either have high win streaks like 12-3 for a conduct, or to stop communicating and play to get better behavior score and not to win.
I guess it’s something to do with report being limitless now. You can just report someone with all options in different timestamps and when I look at the punishment card I see that one guy got 3 or 4 “action taken”. Also you can report again after match is finished.