The point of an ICO is usually to raise funds to held with development and to keep progress on track. If the cost of development is fixed at price X, then surely the ICO would want to raise price X and not something else. As much as I dislike capped ICOs, I can understand why some exist. Where would the debs get the rest of the funds if their goal isn't reached?
I don't think companies can for sure know what "X" is. Also, everyone wants to get the most money possible for things they are selling. Even if a company thought it only needed thirty million dollars from its sale, why not do an Uncapped Blind ICO Auction with a 30 million dollar price floor? More money is always better.
Secondly, you mention that everyone would be able to participate by removing the whitelisted spots. I assume there would still be no way for US residents to participate despite this due to regulation?
Of course you could restrict who was able to bid. There is no limit to the number of bidders. Maybe I should explain things better A company could vet bidders, but it would not need to limit the number of bidders.
One of the main reasons I started thinking about this model was ICOs being restricted in the US, China, and Korea. I truly believe this is the type of ICO scheme that could find favor with regulatory authorities since it requires bidders to put in more thought and research.
Thank you for your questions!