To me, reapers do not burn that bad. Not nearly as bad as some, at least. Morugas and douglahs destroy me like no other, though. Different people have different tolerances to different burn profiles.
Can't say with just one pod. It looks more like a trinidad variant, but it's not a trinidad moruga scorpion. It looks more like a normal trinidad scorpion, but than it should be less gnarly/wrinkly. My best guess it's yet another trinidad (moruga) scorpion open pollination crossbred.
The shape is not the standard Reaper shape, but it is gnarly. The following pic is of fruit from the same plant, which look a little more reaper-ish. Grown from SLP seed.