It surprises me that only 15 people have reported more than one post in 3 months. That doesn't show much community involvement (although I don't know the numbers for other boards).
Most people probably don't want to waste their time with it. It takes time to report things and there's no real benefit for people other than helping the community out.
Exactly. Why would anyone force themselves to go through a lot of garbage, and report posts without any certainty that they would actually be handled (soon)?