Ummm... If I, say, go to your home node and click on the number of writeups, I can sort them by reputation, either highest first or lowest first. That makes it easy to work from the bottom up, if I'm a determined personality voter gunning for you.

Picking at the numbers I threw out dodges the point of my message, however. If you suddenly lose 30 XP, it's highly likely that one of your recent posts was a real steaming pile -- a peanut-laden steaming three-coiler -- and people are expressing their disapproval. It is possible (and I think merlyn has been known to get this treatment) that such a dip would be the result of a determined effort to inflict '--' all over you.