Marauder's Map: Selective Against Marauders?

[val_gal_05]

No: HPFGUIDX 103860

Hey, I just joined and spent all my night looking through some stuff 
on here... Well, I had an idea before, considering no one's really 
sure why we don't see Wormtail and Sirius on the map... Maybe, since 
it was made by them and just in case it got into the wrong hands and 
WAS activated, they made it so that none of the MWPP would be 
visible unless it's viewed by one of them. Does that make sense? Is 
there any evidence to prove otherwise? It might've shown Remus at 
some point around, I guess and that would screw my theory to hell 
but if not then why not? It explains the why-Harry-didn't-see-Peter-
or-Sirius mystery and it would be something they'd think of, 
theoretically, it'd be pretty convinient if they had dropped it 
while it was activated or something.

Val