Comment karma is a measure of how much positive feedback a user has received on their comments on the social news site Reddit. It is calculated by subtracting the number of downvotes a user has received from the number of upvotes they have received. Users with high comment karma are more likely to have their comments seen and upvoted by others, and they are also more likely to be able to post in certain subreddits.
There are a number of ways to gain comment karma. One is to simply post interesting and informative comments on popular subreddits. Another is to participate in discussions and debates, and to offer well-reasoned and thoughtful responses. Users can also gain comment karma by helping to moderate subreddits, and by reporting spam and abuse.
