"We've done this because it's clear we didn't understand exactly what we were doing. We've been shipping many features over the years aimed at allowing community creators to receive a share of the rewards, and in the past, they've been received well. It's obvious now that this case is different.
To help you understand why we thought this was a good idea, our main goals were to allow mod makers the opportunity to work on their mods full time if they wanted to, and to encourage developers to provide better support to their mod communities. We thought this would result in better mods for everyone, both free & paid. We wanted more great mods becoming great products... and we wanted that to happen organically for any mod maker who wanted to take a shot at it.
But we underestimated the differences between our previously successful revenue sharing models, and the addition of paid mods to Skyrim's workshop. We understand our own game's communities pretty well, but stepping into an established, years old modding community in Skyrim was probably not the right place to start iterating. We think this made us miss the mark pretty badly, even though we believe there's a useful feature somewhere here."