P-Bot's post would probably throw up a few errors, and that is all that would happen.
And you won't encourage a site-wide boycott. Not only do most users not visit the forum (especially the new users who sign-up and post their work), but the spam crews will leap at the opportunity to get a daily award for no work.
Either way, it wouldn't be very interesting. Apart from watching those people who love getting blam and protect points flailing about with nothing to do =P