Recently learned that more and more ICOs are closing deals through private sales and merely airdropping the coins. Will ICOs die, when will it?
I think you are referring to ICOs in general, but I strongly believe that ICOs will die when cryptos, in general, are no longer trusted and valued. Think of BTC. ETH and all other altcoins no longer valued and trusted. That is when ICOs will die gradually. As long as the market remains, there will always be a new project(coins) coming.