it is not normal to wait for 6 mounths for a bounty . it is too long for me. I think it should be no more than 4 months.
I don't think 6 months of waiting is normal in giving the bounty token. Definitely it should be around the least of 1 month and the longer it will take would be 2 months. But considering it had given you a bounty token within that span of time, you should be thankful at least your effort has been rewarded.