You know, my mom asked me that the other day. I've been eating this way for over a year, my PCOS is DRASTICALLY improved, I've lost weight, my skin is better, I feel great -- and she wanted to know how long I was going to be on the diet.
I said, "Mom. I'm healthy now. I fixed myself with food. I'm never going off this diet". She seemed to realize what a silly question it was after that
Luckily at my university (and specifically in the music school) there's a pretty large group of paleo/primal people, so we don't get too much flak for it!