I think only 10% that project can pay the hunter with acceptable reward, if you want to high reward i think its very rare project, its like gambling to find it out.
Its necessary to think if we join a campaign, don't expected so much, since a lot of scam project i just do it consistantly and i believe that lucky will come.
If for the time being this is indeed a good project and pay is very scarce even just a little, but in the past before the number of scammers appeared in the project is not the case, many projects pay on time and the tokens given by the project also have a value good on the market.