They might have gotten away with a penny per purchase, and still made a ton of money.
The problem is that they want to keep charging people for something they already bought.
I actually can see their view, but they certainly messed up on the implementation.
In order to continue to fix bug, make new features, etc.. they need to be able to employ people.
Yeah, sure, I don’t think anyone objects to them saying “we need to make more money to keep our operations going”.
They are objecting to “we can only think of one way to make money and we don’t care if it could be abused to bankrupt our customers (developers)”.
They didn’t buy anything.
Unity is free for the first $100,000 in sales.
Steam store takes 30% per game sale, so on a $60 sale that is $18, but developers complain about $.20 per game.