We did end up dropping out of the campaign fairly quickly for a number of reasons. Which was too bad, because he was a friend and otherwise a good guy.
I mostly just bring it up as a cautionary tale.
You may think "rolling is fair" because every one does it. I, and at least one other person (my wife) would disagree. The
results of rolling are not fair. So
if someone joins your game and says "can I use point buy instead of rolling" before rolling and then rolls poorly and repeats the request to use point buy? Don't just laugh and say "You get to play that character because rolling is fair."
Some people may enjoy playing a character with overall stats worse than your average peasant while someone else on the team plays a Mary Sue. Just accept that it's not fun for everyone.