It's not going over very well with the community to say the least. LOL
The community of people that whine that they should get everything for free? Steam isn't outlawing making mods for free, anybody that still wants to work that way can continue doing so. This is only adding a new option for those mod devs that also occasionally want to deviate from eating ramen.
No that is not the case at all, take a look at the discussion board on the subject.
The main issue is that the person/people who create the mods are only receiving 25% of the money paid for the mod, the rest goes to the developer (in this case Bethesda) and Valve.
I was going to link a very insightful discussion that I read on this subject yesterday, and lo and behold the mod and discussion have been removed from Steam, as have other discussions and criticisms (from when I read yesterday). This topic
(started by a modder) raises some valid points.
The consensus from the discussions I have read is not that modders should not profit from their hard work, it is that the system currently set up by Valve is bollocks. Nexus
all the way if one wishes to support modding for Skyrim.