Quote Originally Posted by VictorSpoils View Post
This is a complete myth, as is the belief that it prioritizes duties with sprouts or first-timers. People spend hours waiting in Alliance Raid queues while Mentor Roulette just throws you into Praetorium and Alzadaal's Legacy over and over with no hesitation. The algorithms are undoubtedly faulty, however cryptic they may be.
The 3.2 patch says "Mentors will also gain access to Duty Roulette: Mentor, which assigns players to duties that are struggling to fill party member slots", so maybe their definition of "struggling" is the same as it is for all other roulettes rather than those that have been in the queue for a long time.