I would be more annoyed if he sold "garbage" exotics lol. Also, I heard his stuff has lower stats too anyways tho. Only weapon I got from him was ice breaker, and i did get a chest from his engram, pretty lucky there, but I am not sure if engram ones have lower stats too. For example, sometimes, almost 40 or so stat points are lower on bought items at times. (120 vs 160)