[semimojo]

Now how the hell will anyone know that those ballots were processed by someone else?

If PA is like most states they verify the signatures against those on file from when the voter registered.

See how easy it is to cheat?

Sure, I guess if you're willing to forge a couple of signatures well enough to fool the checkers and risk a felony criminal conviction all for 2 extra votes you could do it.

[Flavious_Maximus]

Thank you. You made my point. It is super easy to cheat with mail-in ballots.