I don't think that'd work.
For example, if we get a day where, just hypothetically, Brighton sign Kaka, Falmer Stadium gets finished and Dick Knight meets David Bellotti and beats the shit out of him, people are going to want to be posting far more than if it's a day where nothing at all happens, yet they'd be limited to the same amount of posts in both cases.
i do understand that, was just idea, might stop people posting constant drivel though.