It looks like the "User Stats" section is not in working order. Based off of Jer's post, it looks like it may take some server power to compile it - I wonder if that's why it got powered down.
It's more than likely never coming back. People would either leave horribly negative, attacking comments in other people's rep (it still happens, but less often), or would gang up and always neg rep a certain person/group. It's an incredible burden on the mod team, and there was a TON of complaining.
How about taking away the ability to comment? Just up or down.