I understand why iron golems don't drop iron like they should. That would make things way to easy. On the other hand it is pretty hard to get an iron golem farm going. You got to get the villagers, build the actual farm etc. On that note iron golems should either have a rare drop of iron (maybe 1/5 chance to drop 1-2 iron) or drop something that has enough value to make it worth it but not to much value where everyone NEEDS one of these farms.
Correct me if i'm wrong, but this suggestion really won't be of use anyways as iron golems aren't supposed to spawn.
You can spawn Iron golems with 21 doors and 10 villagers visit my island if you want to see username is DDanky_Doodle
After seeing they're spawnable, I'm neutral for it. I understand the purpose of the suggestion and see it as a great way to get iron. However, in 2018 on /skyblock, gold was valuable and was droppable via zombie pigmen, so players would create insanely large pigmen grinders, inducing relentless hordes of lag on the server. What I can see happening is large-scale iron-golem farms, spread across several alternative accounts and islands, and the value of iron decreasing, making it less desirable to sell. I'd just love to see people being reasonable with it though, but we can only hope.