Suppose you receive it in their own token, I assume you cannot do anything with them until they get listed on an exchange, correct?
Most of the bounty campaigns prefer to pay the participants in their own tokens. Out of hundreds of such campaigns only 1 or 2 prefer to pay in bitcoins or Eth.
Yes, it becomes risky on the part of bounty hunters because they would be dealing with a newly created token that is worthless at the moment. I generally prefer payment in btc or eth because they are established currencies, but the reality is opposite.
So, before joining any campaign blindly, I prefer you do proper research of that project or just waste your time on those tokens.
Btw, I would recommend you to invest in Howie Coin Link : https://bitcointalksearch.org/topic/annicohoweycoins-the-only-bitcointalk-endorsed-ico-guaranteed-profit-3920469
It is SEC approved so you can invest in bindly to get greater profits !!!