I wonder how the platform once released would affect the Icn coin itself. If btc rise, Icn won't maintain the value, but ICNX could, as is within using the whole market. Right?
Yes correct. Right now I dont see any reason why people might hold ICN for a life time unless the holding do get you something in return. Yes the value of ICN will rise with the buyback but after this what incentive are there for holding it further. This is why the locking of ICN coins can be of importance here
Exactly the same incentive that you have for holding bitcoin or other non dividend paying crypto.
You expect their values to go up in future.That exactly will happen with ICN with buyback option.