[stoolpigeon]

"I don’t know if there were any sites displaying cumulative karma for people."

Slashdot did for a long time - though there were caps on it. I used to see if I could get it to the top limit, down to the bottom limit and back to the top in a single day. It wasn't really all that difficult.

[prepend]

Did slashdot let you see that stoolpigeon has 776 karma or whatever over the whole profile. I just remember ranking comments within a thread.

And kuro5hin had particular flavors and you could sort in thread but I don’t think you could see if particular flavors summed for a particular person.