I'm usually a holder I still coins and tokens I've got from Bounty campaign just like the two of the just recent projects I've participated in I'm still holding both of them but there are instances in the past that I dump my coins/tokens because
The coin is not progressing and I want to buy coins that has more potential.
So what is or are your reason why you are dumping your coin?
You were right sometimes it's much better to sell those coins that was not progressing at all and invest to something that you would take profit in the future. Well another reason of mine why I am dumping some of my coins was to cut losses sometimes I choose to accept losses rather than to further damage my whole investment.