I use fresh Tabascos when I make sauce. Don't know how dried would work. We froze a bunch of peppers last year and I really didn't like the way they came out when they thawed. Still, they are useable just a bit different from a crisp, freshly picked pepper.
Whenever people ask me for Ghost pepper seeds I always include a bit of powder so they can get an idea of what the heat and taste will be like. Haven't had any sent back yet, hehe.
The frozen peppers are for cooking. They are softened by the freezing when they thaw but the heat and taste are still there.