Can you avoid death as an infil by simply never going into a realm you're banned from? Or emigrating whenever you have too many bans on you and coming back a couple of weeks later?
No to the first. You can still get caught and executed if you try to assassinate a noble in an invading army, as a for instance.
Emigrating is indeed possible. I know of a few infil-heavy families that just trade continents every so often. Plays hell with your H/P, though, and if you go too low you hit outlaw status and can be executed without a ban.
