These aren't isolated incidents but a pattern that I, and the few newer players I've gotten to know, have observed. At their best the mentors are just regular players that are less inclined to talk and in more of a rush (on average). At worst (and its sadly not uncommon) they're an active hindrance.

In any mildly challenging duty mentors will often quit straight away. A not insignificant number will actually deliberately sabotage events. I assume in an effort to make others quit or to get themselves kicked and avoid the quitters penalty.

The time wasted cycling through these "mentors" makes it very difficult to complete some harder duties.

Thanks,
A noob.