Signature bounty? The ICO was finished long ago and even then there was no bounty. Thus, I suggest you check for bounties somewhere else, but good project is right here!
btw why some projects aren't running bounties? It's a cheap and useful way for promotion
I don't know, and actually agree with you. It's basically free marketing for the devs... Well there is some work to be put into organising a bounty, but its extremely cheap marketing.
I guess they are confident enough that they will collect the money even without bounty. However, imho bounty also helps to build a community which is vital after ICO.
Really nowadays the team can just copy that bounty rules and everything, need only a man (can be even one of programmers or even CEO) who would put the names in their docs. It's a thing that can be started in one day