Even though its a wise strategy to hodl your tokens earned from airdrops and bounties. It's wiser to convert them into bitcoin or ethereum and hold. Most of those tokens from ICO's are not good for long term hold because the project development is not certain and others may back up after the money raised is exhausted.
Most of new projects will be death in one year if got no new progress. Because investors doesnt like to wait too long for a new project to developed a new progress. They want to see a ready product and want it to be ready to use. Some projects just cannot make it happen that why most of projects just died in a year.