I do not want to be the partypooper but if a coin is never dumped ... it will never rise. You need more people holding the coins except miners to create value in trading. Dumping is not a bad thing , it may look that way at first since the price goes down. But buyers that do not mine, are the traders that will push the value up in the long run.... took me a while to realise this.
You Sir are correct!
Most miners tend to hold onto their coins for to long because: "what if the price rises and I already sold?". Djeez.
They do not understand that in selling throughout time, they will CREATE trading and a larger market.
If I look at the 24h volume from coinmarket.io it's pathetic (always)! Nowhere near enough to sustain or create a healthy supply and demand.
Currency needs to flow, otherwise it's of ZERO value.