As a mentor who actually helps people I think I would lean more towards the extreme. Make it so it requires achievements ( minimum 7k points would make sense ) / playtime ( 2 years minimum ) / Role completion ( 3 for each role instead of one ) / disqualification for using jump potions ( would help weed out the non experience players ) and make so that any player at the end of run can evaluate mentors before exiting. Example thumbs up / down would demote mentor if average drops under 3 stars from a 5 star system. Even I t hink there are some really crappy mentors out there that really deserve to have their status revoked. SPECIALLY those that quit before a run.