The idea is to make people who are being harassed on reddit feel safe[0]. This goal is something I think everyone agrees is a good goal. As a policy decision, I think it is pretty weird they started banning communities instead of people.
There are a lot of people on reddit and policing individual users would be a challenge. Would something like a "flag harassment" button have the same desired affect?
0 - http://www.reddit.com/r/announcements/comments/39bpam/removi...