What is the charge of a photon? For the charge to matter, you're saying that charges infer positive or negative mass. But that's original responder's point...

What is the charge of a photon? For the charge to matter, you're saying that charges infer positive or negative mass. But that's original responder's point.... both the particle and anti-particle both have positive mass regardless of their charge, which is a different attribute. Consider how it is you are conserving energy/mass in your thought experiment. Seems like you might be creating a back door whereby that mass/energy is not conserved in order to preserve charge conservation.