.
Not all freely given things will lose its value in the future.
For me deeponion will not be like that since there is a community behind that supports it.  Airdrop recipients have received coins but did not sell it,  why?  It is because they values it,  they know one day it will truely be worth something.  Therefore as long as there is the community and the developers who will continue to support and develop DeepOnion then it will last forever despite being freely given.