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?
There are some ways to prevent token dumping after the sale concluded in ICO.
Token lock, buyback planning, partial released, etc. The token lock is usually used by developer to avoid instant dump after sale period.
The buyback plan usually happening when the ICO succeed raising more funds than their soft cap limit, or reaching hard cap.