A 3 day bonus period for 10% of supply is a joke, a joke.
A 10% bonus fine but 10% of the entire supply is ridiculous, even more with the notice.
Just found the project and it looks neat. I like the BTC cap as-well and would normally consider investing.
I don't know how much you raised in the 3 days but it's probably around 100 BTC (complete guess) which would be like a 100%+ bonus.
It's for that reason I'm unlikely to invest. Not just due to the economics but the principles in which this was done.
Best of luck with it.
EDIT: If the escrow address contains the pre-invested funds then it's 25 BTC and a 400%+ bonus.