I don't hike the way you do, but go a little farther and harder than a lot of folks. So far, I have never encountered another hiker in a kilt. A large part of that is probably due to my tendency to seek out areas where I'm least likely to encounter people of any sort.

Truth be told, with the exception of one college professor I run into once or twice a month, the only time I see anyone else kilted at all is St. Patrick's Day. I don't really consider that any more indicative of the potential to encounter a fellow kiltie than the number of sombreros on Cinco de Mayo indicating the likelihood of meeting Poncho Villa.

So, basically, it hasn't happened to me, and very likely won't happen any time soon.