I think there is a way to fix this dumping problem plaguing crypto space ,its very annoying to see dumpers dumping coins or tokens at a very lower price than that of the ICO price ,dumping kills coins easily ,I think developers should have some kind of deals with exchanges that won't allow people to dump coins at a particular price ,what are your thought?
You are equally right because we have lots of greedy people that are in the market and no matter what you preach to them, they are obviously not willing to stop this attitude at any time till they see the downfall of the project.
So as cryptocurrency keeps gaining more experience on a daily basis, many upcoming projects needs to study these loop holes and try as much as possible to proffer solution to them that will in turn better the development and relevance of such coin in the market and one of which you have mention, there should be a limit to quantity or even price at which people can dump the coin even if we know that it is a decentralized system but some human being are not worthy of given too much freedom.