I believe that a good team with real people behind it and a real product are the main things to watch. Payments are good when done in btc or eth, but if the project tokens have a real use case, like for example Yanu tokens with what you can buy drinks, get cocktails and discounts, then I see this more as a long term investment and I want to stack my tokens for the future. That's why I would recommend Yanu bounty program - good payment, trustful people and a real project!