I keep reading that people are parking at DD and then taking the SSR buses. This usually causes the buses to be over-filled. Would a security gate at either end of SSR on the sidewalk stop this? One of the big complaints about SSR is the bus service. Is this one way to help the problem?
If you're not staying at a WDW resort, you should (theoretically) already have your own transportation (either your own car or a shuttle/bus from another resort). This would take care of the issue on many levels with very little effort from Disney. People wouldn't be happy, but it would solve the issue.
If Disney is running the bus, they don't care who gets on until their resort guests can't board on a frequent basis. Let's face it, every single person on that bus is spending money at the parks, restaurants, and DTD whether they are staying at a WDW resort or not. In the meantime, if we continue to get bumped because there are too many people, it's important to call.

look and told them they be better off to get off at CP and walk.