Bounty tokens and coins can turn useless very fast once trading starts on exchanges and this is because the project isn't good enough, the project has too low demand in Crypto space and that's a big red flag
it all depends on the project being developed, when the project can be used by many people and can be a solution to a problem then the price of tokens or coins will definitely still last, but when no one is interested and there is no project development then the price will easy dump happens.