So as a question at what stage do you ban a player for life... after the 3rd incident, 5th, 58th? At which point does he become a financial liability. As in, lets say the next player he bites, he takes his ear off like Tyson. You think Fifa won't be sued, liverpool, Suarez himself. Fifa for allowing someone who repeatedly offended to stay in the game?
There IS a point where it's entirely reasonable to ban someone who is a consistent danger to others. It's not at all unreasonable to suggest that a lifetime ban is a realistic possibility... at what stage and after how many incidents is a very fair question, but to pretend that someone who continually attacks other players doesn't run the risk of at some time passing the point where Fifa can allow him to continue is simply ignorant.