User blog comment:QueenArasene/The Aura bore Alice/@comment-4536066-20130221032556

I would amend "feel if another mahjarrat is dead or alive" to "feel if another mahjarrat is present." This is effectively the same thing, except a Mahjarrat's death and his absence are treated equally. Concievably, a mahjarrat can tell if other mahjarrat are in a location by either turning his aura-senses towards that place or by just being in close and obvious proximity. I'm actually inclined not  to think that they can tell power levels, because there is a scene in RotM when Wahisietel senses a mahjarrat near by and assumes that it's Khazard, but it turns out to be Lucien. Considering that Lucien was halfway to godhood when that happened, I don't think the mix-up would have been possible if power levels were evident.
 * Feel if another mahjarrat is dead or alive
 * Have a certain understanding of how powerful another mahjarrat is

I would agree that a mahjarrat could follow another by first locating his aura and then keeping track of where that specific aura moved over the years. I would not agree, however, that he could just decide one day, "Hrm, I want to know where Arachnea is tonight," and cast his aura-senses out willy nilly to locate her. I say this because of the scene mentioned above with Wahisietel that indicates they cannot tell each other apart just by aura alone. I guess the only prerequisite to this ability would be that the two have had at least one encounter before.
 * Should mahjarrat be able to trace each other via their auras?

Judging by Kharshai's situation, it seems safe to say that an aura cannot be hidden unless the mahjarrat himself doesn't know he's a mahjarrat.
 * Should it be allowed to hide your aura?

Personally, I always lean towards abiding by lore when I can. But while I promote that attitude, I also understand that there are some people who are just going to do what they want.
 * Should we settle down on the aura business and return to more lore-abiding realism? Do we want to?