I recently had a similar idea, but I didn't pursue it because we can't force people to use karma. Unlike BitcoinTalk, where merits are limited and you need to earn them before giving some out, our karma system is unlimited for senior members and above. So, when you see a deserving post, it's easy to click the karma button. It's even quicker than the merit system, which requires an extra page to input the number of merits you want to give. Let's try to make the karma system more enjoyable while it's still easier to earn.