This raises the risk of posting even higher. As it is now, if your average comment karma falls below 0, your account is secretly perma-banned from posting. If

This raises the risk of posting even higher. As it is now, if your average comment karma falls below 0, your account is secretly perma-banned from posting. If you're at -1 karma by default, the amount of people who become "secretly perma-banned" will increase significantly. I'm sure that will improve some comments, but I feel we also will most certainly loose out on good posts in the future.