To answer your question... 'Would it be difficult?' Probably not, but still don't see it happening.
If AS sends my bid in early, it's silly to argue whether it's to insure my win, or insure AS gets their cut. They are both the same thing. Some see the glass as half empty and others see it as half full, and it's silly to augue which is correct. If AS bids TO early and I'm outbid manually, they don't get paid. That's enough to convince me they will do everything they can to insure my bid gets placed, but not TO early.
Not bad etiquette, but I'd click the edit (
) button and remove my email address.