https://www.youtube.com/watch?v=Qinr93dlCI0
See this video for proof, i agree with him. Bethesda cant even run properly their main game without bugs, their mods are dangerious if they dont quality controll them. I think Sony makes the right decision to not allow them.
As you can see Sony supported Mods in Unreal Tournment 3 on the PS3 but Microsoft didnt so where was the outcry back then?