Of course, each of the hunters would like to receive payment for the work in a more reliable of top coins for which there is a demand. But often the team has a goal and idea but no money and they need for which to collect investments. Therefore, hunters are paid with tokens. becaese the team is easier do that and harder for us ..
Recently there was a bounty campaign in which tokens could be immediately exchanged for Etherium. The price was not high, even likely low. There were far more people who wanted to receive ETH than those who chose tokens