In response to post #29456319. #30074860, #30189735 are all replies on the same post. Because Bethesda owns all the stuff modders are playing with (related to their own games of course), so they get to say what goes and what doesn't about their own stuff. That's why. That's like asking why you can't spraypaint a public bench. It's owned by the local government and sure, they let everyone use it, but ONLY within the rules and limits they've set, no more.