MenachemWhy would that even be a rule, though? Seems unlikely that there's no fine print in the workshop agreement that says "the shit you submit is ours after you submit it"
Otherwise it's just a dumb rule that they have no reason whatsoever to adhere to. Even if there is some legal reason it would take all of 30 seconds to send those content creators an email and get permission
I mean when they buy the map to put it into the actual game they very much do own it, that's how that works.
I assume the rule is there to stop people going "oh btw now that my map is in the game this texture/model/whatever my friend made is vitally important to the map can you give out some money to them and put it in the game?"
I'm not defending the rule or anything here, just saying what I know from talking to people with maps in the game.