I count among those who move a lot on pathless terrains and who first seek on the forum precise descriptions of movement towards the goal (besides current conditions), which I compare with data from other sources. GPS tracks are thus important and welcome to me, but far from decisive. Above all, they contribute to safety; on pathless terrains even much more than on marked paths. The condition is of course that we know how to handle the device and know the path's difficulty, our abilities and take current conditions into account.
I also count among those who don't jealously keep hidden areas just for themselves. It doesn't seem right to me to try preventing more precise descriptions out of fear of too much visitation. A mere superficial, experiential description with a beautiful photo will get someone on a path sooner than clearly written that to that photo one needs to climb a gully reminiscent of a III.
I don't think there will be excessively more visits to pathless terrain due to GPS tracks. Abandoned trails, chamois paths, steep grass, wobbly holds, exposed unsecured crossings, rare damaged protections, sea of scree, are not a magnet for mass visits. Crowds are where there are huts. When those close, peace reigns in the mountains too. To those few individuals who will later, say due to publicly published GPS track and step-by-step description, reach some goal via pathless (more safely), I also wish it. Despite everything, they had to invest huge effort and knowledge.
And one more thing needs to be said. There's a lot of writing lately about GPS navigation.
The feeling is the same as years ago when mobile phones started accompanying hikes. GPS will become our daily companion, can't avoid it. Even in mountains. But if anywhere not, then in mountains they don't lead you "by the hand". They only indicate turns, their max accuracy is 5m (which can quickly be a lot), cartography for device and computer program is what it is – outdated, in gullies and chimneys quickly lose signal, also signal is worse on cloudy days, depend on batteries. In short, relying only on GPS in mountains is dangerous. In combination with classic map, path description, tips from experts and our knowledge and experience, it will soon become indispensable tool.
Janez