The 24hrs is so the user knows where they stand, as they may not be able to get to a pc for a while.

Moderators are unable to move blog posts to the forum under the users name, and a pre warning is a better idea as the user can copy/paste the same question asked...especially if its a detailed question.

Having to email the user every time a moderator takes action is time consuming and unnessecery.. one polite breech of rules warning is suffcient.