How much pepper sauce could you get out of a Carolina Reaper?
Pepper sauces usually deliver an aroma (from the peppers), some sweet/sour/salty element (from the pickling ingredients mostly), and heat (from the peppers). A hotter pepper will not necessarily be stronger in aroma, so using this kind of super hot pepper alone can end you up with a sauce that is hot but poor in flavor. Also, given that capsaicin is very soluble in fat but not very soluble in water/vinegar, such a sauce will have a very uneven distribution of heat and will likely end up with a very harsh, unpleasant heat no matter how diluted - similar to throwing chile powder into a lean soup.