Adding boards should probably be done with some caution. Image boards (especially those with a particular niche like this one) have a tendency to almost "forget themselves" if boards for unrelated topics get added, as potentially contentious posters might arrive just for these boards. I get the intentions, but I think site culture and discourse quality would benefit from remaining focused around older otaku interests.
Not saying we'll end up with a trashy politics board tomorrow or anything, but I'd not add new boards without some contemplation first.