I've seen a lot of complaints about duplicate blogs, and have had a bit of trouble with that myself. I think part of the problem is that only 3 of the most recent blog pages are listed on the home page, so when people create a duplicate page, they don't realize they're doing it until it's too late. If that number were increased to 7 or 10 for example, I think we'd see fewer duplicates and fewer complaints. I'm not an admin, so I don't know if that would work or if it's even possible. It's just a thought.