I have sold my bounty tokens before they got dumped badly on exchanges so I don't consider it as a profit or loss because I just check the ICO prices and the price of my coin at the exchange. I feel bad for many tokens as they were pumped by 500% after I sold them and when I could earn $100000, I sold them at $120 while others reached $10 from $1000. Can't say which tokens will reach what value and hence it's better to sell them as you earn them.
You are saying it's better to sell them as you earn them but in your case you sold some bounty rewards for $120 when you could've made $100 000? I know this is probably 1 project out of 1000s but for me this would be reason enough not to dump everything as soon as I get it.