For example, ‘e’ is considered a low risk of invalidating, because all surrounding keys would still result in a valid email address. So although it’s less common than ‘e’, it carries a higher risk of resulting in an invalid email address if missed.
I also built in some general common sense: people with aol email addresses are sloppy typers.We all know that the pinky is the retarded cousin of the finger family, so that is factored in as well. And again, those bad keys are only invalid in certain circumstances.And since it’s more likely that the shift key would be down only for the letters on either side of the @ symbol, and ‘l’ on either side of the @ is considered particularly dangerous. It goes without saying that I’ve gone to a similar level of effort to account for soft keyboards.Daryls tend to poke at the keys with only their index fingers like they’re afraid each key will burn them.People with ‘z’ in their name use mechanical keyboards and rarely make mistakes. I also factored in the fact that any dot before the @ in gmail addresses is ignored and that ‘f’ and ‘h’ are pretty much the same letter when you think about it.