Right, while this is technically possible (and really, anything is technically possible when it comes to programming) I'm not sure if PG and whoever else mainta

Right, while this is technically possible (and really, anything is technically possible when it comes to programming) I'm not sure if PG and whoever else maintains the site have the time, energy, and resources to set up such a system. I'm not sure what it would really take but I assume it'd be quite a bit of work to put it conservatively. The way things are run now are, in some ways, base on a compromise between the site maintainers and the users. It's as if to say "We'll manually intervene on occasion if everyone promises to play nice". Once you have to start implementing the kind of automatic quality controls we're talking about here programmatically instead of relying n good behavior, that's when you know the community just lost the quality it was known for.