The other problem is that when a SP has a customer who "can't figure it out", a typical course of action is to just "register the route for them" rather than try to explain it to them. Unfortunately, the same thing as above happens here, you end up with a big pile of people who register a big pile of routes in a big pile of random databases, often times completely unnecessarily, and they'll never be removed either.
The biggest problem with the entire system is the way that data gets into it, and the lack of incentive for people to ever remove data from it. But as a mechanism to allow the routes which need to be allowed, and mostly prevent accidental leaks, it works.
Agreed. Wish most providers take the extra mile effort to advise and facilitate customers on the process. The redundant entries are annoying :-)