If you are worried about bounty participants selling all their tokens causing the token price to fall, you can pay with other tokens such as ETH, USDT, XLM or any token available on the Nominex exchange. if Nominex does not have enough funds, why do they hold a lot of competitions with big rewards, without saying the reward will be locked for 1-3 years.
I would say there are few ways to choose, and they are choose the very wrong way. That was a good option to do, if they did, the case would really be over, and hopefully his reputation will return after that.
Until now they promise "daily unlocked" but none of the locked tokens are unlocked.