I dunno. Kids making mods is one thing, a corporation exploiting that for profit is something different.
Sure, Gmod and what have you definitely had sales because of mods, meaning an indirect profit, so one could question that too. When it comes to Roblox they’re directly profiting off of the labour of children in a very predatory manner.
Neither scenario is fantastic I suppose, but only the latter is actively encouraging and building systems to exploit people.