yeah its default question. Good bounty campaign means successful project. I usually look at how the project is doing its job. I usually focus on projects with a lot of participants and it gives confidence too.
There are too many altcoins in the coinmarketcap.com and still too many new altcoins that are being running on different coin exchanges.
My concern is, most of the ICOs have non sense projects and most of them still not having a working projects as well and the development has not yet started.
I don't invest on nonsense ICOs that always mentioning "decentralized" and "information freedom", useless and non sense.
Look at Envion, WePower, KWHCoin, Oyster etc.. they have a good projects, unique and very useful for the users in the future.