I see people doing this a lot in Deadlock, Valve's next game that's in pre-release stage now. There are all sorts weird and fun skins people play with through mods, some of them definitely not copyright-friendly.
I wonder how Valve will handle this once the game is ready to be released - will they just blanket ban the mods? (seems likely, and the community is even probably ready for it so will not be too pissed off at the move.) Or will their monetization route be something else this time, not "hats" like usual? (I'm hoping so, although I can't imagine what else it could be without being pay2win.)
All Source games, not just Deadlock, did and still somewhat do have a strong modding scene. The way it's handled now is that official Valve-hosted servers have a config option called sv_pure set that prevents most mod .vpk files from loading on connecting clients (though some things like custom HuDs are whitelisted by this system). Once Deadlock gets paid cosmetics you can expect sv_pure to be turned on for Valve servers, which 99% of the playerbase will exclusively play on.
What's the other 1%? For eg., in Dota 2, if I create a private lobby, would that allow the mod vpk files? Or only for local bot matches? Or some other more involved scenario?
Not sure about Dota specifically but for e.g. TF2 any non-Valve-server game had pure off by default. That does mean bot matches or private lobbies. You could hop into a community server and run your mods fine right now if you wanted.
I wonder how Valve will handle this once the game is ready to be released - will they just blanket ban the mods? (seems likely, and the community is even probably ready for it so will not be too pissed off at the move.) Or will their monetization route be something else this time, not "hats" like usual? (I'm hoping so, although I can't imagine what else it could be without being pay2win.)