I've noticed a few times that I'm getting -1 to my reputation score particularly related to questions and answers that are trending negatively in down votes. In these cases, I have commented on the question or answer, but probably have not directly answered or edited the question or answer. The score change, however, does not state what event caused it.
What is the negative score in regards to, and how does this help build our community?
Sorry if this belongs in some other general StackExchange community. I just most of my time on StackExchange with this community :)