Best punishment would have been to suspend a week's pay , just to let him and all other campaign members know what the consequences are for this..and probably some comments on the spreadsheet to alert everyone that you have an eagles eye on them.
Secondly, it would be interesting to see the pattern of the quota's... If it's always say 30 posts as required by sig, doesn't show natural contribution towards the forum as I know some managers don't like members that hover just around the maximum allowed post numbers.
Now with this, hope his not tainted for this.
My question is why make such posts and then edit them later on, precisely towards cut off time?
Don't take my word for it, maybe a working person that makes those posts during work hour's and only gets back to them when they have time to themselves (in an effort to avoid post bursting ) 