I think from the 13 & 14 days until the ICO ends, the system should not allow people to sell back their TOKENs to avoid arbitrage tactics that may cause messy situations and accusations.
I'm curious what you think is wrong with arbitrage on TOKEN? For example, the price of TOKEN to BTC is guaranteed to increase for 14 days, so some people may buy TOKEN early and then sell a few days later at a very small profit margin. If the market is willing to pay the price that these flippers are offering, how is this bad?
In general, I see nothing wrong with some people trying to make money by capitalizing on the demand of TOKEN. However, if someone sees a valid reason to put a stop to this, I'd like to hear it.