Actualy in my own experience is this not normal,to wait our rewards in a 6months co'z its only takes a month before we receive our bounties rewards,but due to market down sometimes investor make an excuses to delay the distribution of rewards even due the investor they wait also in that certain period of time,because for me investor needs also to earn there invested project platform,thats why thsi kind of investment now of bounty campaign can makes us discourage to our group,and maybe in the present no one would trusted this kind of investment,even in ICO participation because people needs to earn early,because they want to circulate there capital and also to support of there daily needs.
Indeed, there are a lot of projects that are distributing bought tokens to investors more than a month after the ICO, just like it happened with Dock.ai during the last few months.
But 6 months for a bounty reward.. gosh.