You're playing DUMB... real dumb.. most people are not THAT dumb..
Maybe I AM that dumb, what do you think about THAT? ;D hehe Seriously, I don't know what else you want me to say. You asked "What does Pontifex Maximus MEAN", and I told you what it means, from the Latin.
If you also meant "Is it another title for the Pope?" then the answer is of course yes, but you already indicated you knew that so I saw no reason to say that. IMO, it's a perfectly acceptable title for our Holy Father, since he is also (at least supposed to be) a "bridge builder", a builder of bridges to the world, to bring them to the Good News of Christ.
To sum up, the title "Pontifex Maximus" is just a Latin phrase; it's adoption by a leader of Christianity, even if it was used by a pagan leader before that, is no more evil than the adoption of the celebration of Christmas, originally (the date, or a date close to it) a pagan holiday.
To see an example of its relative ambiguity, click here and read the paragraph that starts, "On this and related issues Stravinskas is a veritable pontifex maximus..." Now, I can assure you, Stravinskas is and never has been the Pope! The term is simply a Latin phrase; to read anything more into it is an attempt to justify an agenda.