i know i've tried somewhat of the same kind of hack a while back... didn't feel like bypassing so many different places that i just added in another field to the post table...
https://vborg.vbsupport.ru/showthrea...threadid=42444
thats just what i did to try to acheive the effects but it was only a user to user based and im sure it can be modified to a usergroup to usergroup based...
g-force2k2