Here's what I see:
Cap it too low and the whales feast.
No cap and the lemmings suffer (this will run well beyond its proper value due to the hype).
Spend time to cap it accurately and the whales and lemmings both get a piece of the pie without blowing past overvaluation.
Running 1 hour uncapped is a phenomenal move for Bancor, manageable for the whales, but BAD for the lemmings. Whales aren't affected as much because they will hold volume nonetheless, but the real punch to the face here is going to be handed to the lemmings because they will need to chase higher yields in an already inflated market cap starting day 1. Yeah there's the long-term investment mindset, but if the uncapped ICO goes nuts I don't see the point investing in something that will be its 5 year future value on day 1.
One thing is for certain and that's Bancor is about to get PAID.