Sometimes the coins we get from bounties are not worth, So must better to sell them early than to hold it. But if we think this coins we has have a future must better to hold it and be patient always if we want to earn more profit.
you are right, some of the coins from the bounty did not have a great development, and it makes better we sell in the beginning. but for a great project, we could see growth in 1 year and some of these coins have a very successful ride more than the price of the ICO they.
unfortunatelly 7/10 bounty campaign i participated are failed and ended with scam, i hold many token from few project and trying to keep hold them in my wallet and not sold early, but i got sadly ended, nothing any development, innovation and news from dev.
A better strategy so as not to be at a disadvantage in selling bounty tokens is to verify that we are participating in a legit and viable project that would most likely already have an MVP and has capable and committed developers so that we can at least have a high probability that our efforts will not go unrewarded. I understand that choosing a good bounty project right now is quite difficult to most of the participants in the cryptocommunity.