I think for the mentor system , it's very bad in every DC , the reason behind it is how the system works , as you can see ,the word mentor means
[ an experienced and trusted adviser. ]
what I have seen is that there is mentors who are not an experienced let alone trusted adviser , it's such a joke that anybody can be a so called mentor , yes there is a good mentors out there who are willing to do what it takes to help other's , and as ryouma17 said , there is like more people without the crown helping and doing what these who own the crown should do , but yeah people want it for the mount or just to look cool , hope they make it a better system.