I don't think the "no images" solution makes sense. Images are just one of countless kinds of lame submissions; why single them out? I thought the whole idea of voting and oracles was to be able to avoid that sort of hand-to-hand combat. Why use a heuristic spam filter when you have a Bayesian one that works better?
Because if a 10-year-old could have come up with the media being submitted, then it probably shouldn't be submitted here. Having no newsworthiness, pictures contain boring, rehashed messages, and are dangerious because they stroke the group's ego with simplistic messages, and dangerious because they become the preferred submission over time, since they tend to falsely increase a user's confidence though no knowledge has been transferred, while original, analytical thought has been stimied.
I completely agree with you, but I don't see how that addresses my point. Picture submissions suck, but it's a waste of effort to ban them when we already have a more effective way of dealing with the broader problem of lame submissions.
Its a hard and fast rule that kicks in before the submission goes onto the site. Ways of modifying the effects of voting happen later and are more subtle.
The new page as it stands will continue to be useful up to at least one more order of magnitude in volume, and I don't think PG intends to let the site grow any more than that.