* Commenting on new posts that may never make it to the front page.
* Commenting at the "wrong" time of day.
* Commenting on fringe issues unloved by the crowd.
* Adding a comment to an already long comment thread.
[Edit] I don't mind scoring low at all (I do mind negative scores). That doesn't keep me from doing all of the above. But being visually set apart from people who, for whatever reason, do not do these things as frequently as I do makes me think I'm in the wrong place.
* Having longer debates involving fewer people.
* Commenting on new posts that may never make it to the front page.
* Commenting at the "wrong" time of day.
* Commenting on fringe issues unloved by the crowd.
* Adding a comment to an already long comment thread.
[Edit] I don't mind scoring low at all (I do mind negative scores). That doesn't keep me from doing all of the above. But being visually set apart from people who, for whatever reason, do not do these things as frequently as I do makes me think I'm in the wrong place.