I realize that the mods have the ability to look at who has given what rep to whom, but do the mods have any metric that allows them to see the rate of repping?

I often give reps for threads that I am not directly involved in if I think the answer was a good one. However, I rarely get a rep from somebody who is not actively participating in a thread. Therefore, I think my behavior is somewhat anomalous, but there is no good way to know.

In fact, even if the answer to the question was Yes, I actually am not quite sure what a different rate of repping would mean. Reps/posts might be of interest, as might reps/threads started, but neither would be all that interesting.