You have to be seriously mentally challenged to ban people for modding games. They make PC gamers buy the games and DLC just so they could support a company that does good by them. Would Bethesda be where it is now if their games weren't so heavily moddable? Would Valve be where it is? Fuck no. Counter Strike was created as a mod. Counter Strike made Valve famous. Counter Strike uplifted e-sports and companies that manufacture mouses, mousepads and gaming keyboards. After Counter Strike every major developer tried to recreate it's success, thus creating Battlefield and Call of Duty (among others). Big companies owe everything to the modding community! Treyarch went as far as to rip off gun-game which is a community mod for Counter Strike. God knows what modding community could come up with if Bioware released modding tools for ME3 and if DICE released modding tools for BF3. They could create new mods, new missions, new games. People would buy the core game just to be able to play awesome mods. EA could then adopt those mods as official mods and base games on them. That's what a good company does. That's what Valve did and look at them!