I would like an answer to this. There's all this talk of down-voting submissions and user comments but i don't have this option.
I think flagging submissions is 100 or 150, and downvoting comments is 200. One can't downvote submissions, only flagging.
Flagging is under 100; I'm able to right now, at 81, and have been able to for a while. Perhaps 50 or 75? I don't recall exactly when it showed up.
Okay, maybe it's 50 then, can't remember. I'm also wondering when topcolor becomes available. I have 250 right now, and I thought that the threshold for topcolor was 250 but I guess not.