You are talking as though those bounties began as IEO bounty, who would have ever known that they will later transform to IEO because they all started as ICO bounty, and the moment they transformed to IEO, majority of them stopped bounty campaign.
This is music to my ears. It's funny, there's becoming an inverse correlation now between the increased number of people who believe the above, and the increased number of bounty campaigns that start as or become IEOs. I hope this disinformation continues to be honest, as it gives more reward for all the small crowd of IEO bounty hunters right now
Keep finding those IEO bounty gems folks, as most people still think they are a myth 
Unfortunately this won't last forever... others will catch on, eventually, so make the most out of it while you can.