It’s a big “buyer beware” type situation to be sure. I think the thing I’m responding to most is that they offer a “pay what you want” option. Actually needing to pay for a mod is shitty, but I expect in that case what’ll happen is that most people won’t buy it, and therefore the mod won’t be very popular. And basically the only way to browse the workshop is based on popularity, so nobody will ever see the mod. There’s a built-in incentive here for mod authors not to charge much/anything for their mods.