What's the best strategies for a bounty campaign? Looking for ICO veterans

[BuildGuru]

Hi, we're working on an ICO in the next few months. I wanted to get some great ideas for bounty campaigns.

We're looking for people that have done an ICO with a bounty campaign, what were the best marketing channels for the bounty?

What would you consider is worthy and things not to worry about?

Did you measure the impact of the campaign? Can it be measured?

How did you track the stakes in the campaign? was it a manual process? or is there something out there that can make it easier.