The problem with the mentor system

[MomomiMomi]

This is not 1%. This is a trend. These are experienced players who play for several years. Some of them have their own FC.

I meet such people in dungeons and raids quite often and write reports. But reports and blacklisting do not guarantee:
1. That they will stop doing this.
2. That I will not meet them at roulette again.

And how many do you meet that aren't like this? I bet you have no idea, because it isn't noteworthy to get someone who isn't acting like this. Moreover, someone can be a mentor and not be displaying their crown.