I point out endless precisely because he demonstrates that what you say about m7 enforcement is just wrong. I've watched this account post low tier daily for a year and nothing happens. I think what you wrote SHOULD be the policy, but right now it isn't enforceable, because M7 most of the time is busy running the site, he can't be patrolling the mounds of shitposts that roll in every day. In most reddit-like sites that's the role of the subsaidit-level mods, to prune spam and shitposts. What I'm pointing out is that a lot of the default subs don't have active mods, so low quality posting is rampant and chokes the feed of the average user.
I honestly don't have anything against endlesssummers personally, and I don't care if he's right or left. He's just the poster boy, in my opinion, of the worst element of saidit, people that spam and abandon low quality posts 24/7.