Kills any sort of modding community in so many ways. Let's use Warband as an example. It's an emminently terrible fucking game to mod. The tools and structure do not lend themselves to it. The only reason people figured out how to mod to the extent they did was because of open communication between modders, happy to give out the knowledge, tips and tricks they figured out after slogging through the morass of code left by the original devs. With a pay for mods model, there is absolutely no incentive to share out knowledge. Why would cmp EVER explain or lend out WSE when he could just hoarde it?
Not to mention the endless, soul darkening bullshit that will come with paid mods, the marketing, the reviews, the impossibility of using any sort of IP (goodbye GoT mods, goobye LoTR mods, goodbye Warhammer mods, etc), the bickering and thieving over assets, etc. GJ Valve, truly the wave of the future. Not surprising to see some tards in this thread gleefully sucking at Gaben's fat hairy nutsack as he rubs his asshole all over your stupid faces.