One of John's biggest buggaboos is piracy. Something everyone here at the OutHouse dislikes just as much. However, it's this kind of behaviour that attracts it. It creates the ultimate challenge, and the bigger reason to stick the thumb in the eye of the (for lack of a better word) "selfish" developer, (who may/maynot even be in control.) Did John sign a contract, and then Warbirdsim is adding on these decisions post signing?
John said, on so many words, that he was making these new early Mustangs because the Sky Unlimited ones are so hard to paint. Doesn't this defeat that purpose?
As for the small donation to time involved, Jan Visser & Co. could have/should have made his fantastic F-86 donationware at the very least, but he chose to give it to the hobby, and he plans many more variations, to boot! No one here was expecting this aircraft to be given away. Heck, look at what some have been willing to pay for some of the newer releases! But none of those have had these restrictions, and sales have always picked up when the selling company has sales, mostly because of all the paints available. This doesn't make sense.