but a coin that is mined out in 3 years is not likely to support long term adoption. Cryptos won't even be mainstream in 3 years and the only thing to support KDC miners at that point would be meager transaction fees. No miners = no network.
yes that is main point. we need to be in mainstream with in very fast. so we need to be fast in our activism, no body going to mine a value less thing. if we can reach the mainstream with merchants , there will be miners and mainstream giants for supporting the KDC community, as in the bitcoin, there are bitcoin enthusasits who mine only for increasing the network hashrate and supporting the bitcoin community
(see
http://cryptojunky.com/blog/2013/10/05/running-asicminer-block-erupters-for-fun-not-profit/) and also big guns who mine for the value of their bitcoins.