I'm just disappointed that people who bought the game in its infancy will either end up having to spend more money than those who show up later or deal with a feature-incomplete version (no multiplayer, delayed updates). It's not a LOT of money, sure, but it's about the message of supporting people who supported you.
...Okay? That's great news for you, but not everyone is getting a cheaper version.
EDIT: Okay so you're completely changing the angle of your comment, I guess. I can't speak for anyone else - and I haven't read too far down into the comments, so maybe I'm missing some super disrespectful posts - but I don't think it's unwarranted to be disappointed in Mike's decisions here, given how many people supported the original version of the game in comparison to how many people heard about it and didn't buy it, but will now do so for a better version of the game and a smaller total sum.
I'd certainly appreciate a Steam key, but I wouldn't want it as the result of a harassment campaign against Mike by any means. It's unfortunate that I don't know of any ways to contact him directly, but I would hope anyone who does is willing to be polite and reasonable in their explanations (though I doubt they will be :/).