well, i think the logic is that the higher ranking members are more experienced with posting in ammo, and most of the time they have something interesting to say; not "Lol" or double posting and such.
@ Darkish the only reason it doesnt make since to you is cause your not reading it right, If someone intends on spamming and they can only post 3 times a day they are going to pack alot of spam into one post. Simple
--------------------------------------------------------------------------- Kungfu Hillbilly aint got S*** on me!
and that, in turn doesnt make sense because long, pointless spam posts will be deleted on sight. There are five active moderators in ammo, so deletion shouldn't be a hard task