For example all those cut branches but only one knife was found, a pocket knife on Rustem. Does that hint on someone else being there? Or missing items, for example missing diaries, cameras, some of the food missing from the labaz (I read somewhere on this site that experienced hikers said the amount of food in the labaz wouldn't last the rest of the trip).
But if someone else was there how did they leave no trace in the snow?
I read that Mansi broadskis leave no trace... yet the Dyatlov Group were following a Mansi trail and write about it in the diaries. Or maybe broadskis leave a trail in the soft forest snow but not on the hard snow on the ridge?