You know, I've spent a few nights on exposed ridges w/pretty major storms/wind going through and never had a problem w/stakes being pulled out. I've been known to place some heavy rocks on top of my stakes for extra reinforcement, but I'd never in a million years dig holes and bury them, at least not on AT-like terrain. You'd be there a while, especially if it's rocky or if the Earth has a very shallow dirt layer on top of rock. I suppose it makes sense for sand and high wind though.
This is my signature.