Making GPG and programs that use it easier to use would be nice. But the primary issue is that many people that should be able to comprehend PKI basics and necessary background material to use it, are too "busy" or "lazy" to spend the limited time to even scratch the surface.

I face this daily, since I'm the go-to guy at my office for scripting/coding solutions for these folks. They just want it to work without having to learn or understand their decisions. And these are the same people that will spend hours figuring out complex lunch accounting issues or read volumes on video game strategies or rebuild engines.