So far, I have seen several projects that claim to pay with ETH, and the results are all scam projects, which is really disappointing. The IEO project was very popular in the beginning, and slowly investors lost confidence in this approach.
Get used to it, since the market conditions are so difficult for icos I would have thought that scammers would have given up already but it seems they are trying to find all possible ways to try to scam bounty hunters and it seems they are now offering to pay their bounty hunters with ETH but unless they sign an address with enough funds to pay everyone then you should not participate since the chances you lose your time are going to be very high.
For me scammers will always be there and if you are a project that is trying to provide payments to bounty hunters in the form of eth I think it will attract a lot of attention for bounty hunters and also investors to participate in the project. Regardless of the scam or not the project, of course there will be many people who are very enthusiastic to participate in the project and I think a project like this must prepare a large amount of funds to be able to develop their projects.