IOTA is my one and only ICO I took part. Why? Cause DAGs (tangle) are much more expressive and more flexible than lists (blockchain). And all other coins I know use variants of lists. If a new coin come up based on DAG I will give it a try but until than I will keep my IOTAs from list 1 (which I don't have). Anyway: even if all list 1 owner will sell immediately what will happen?  Will IOTA drop? Don't think so. And if IOTA drops we will stop selling cause  we became so greedy...