And sure, let's say in 90% of cases using the same 6 char password for everything is okay. But let's take a not unlikely scenario - one website that you frequen

And sure, let's say in 90% of cases using the same 6 char password for everything is okay. But let's take a not unlikely scenario - one website that you frequent is compromised and an attacker gets an unsalted hash of your password. Because your password is so commonplace, they can easily get it as well as a lot of other users' passwords. Now for every password and email combo they have, they try to log onto a google account or bank account with the same information. Since you use the same password everywhere, they succeed. You're essentially now screwed and the attackers could do all kinds of devastating things. Perhaps you say the scenario is unlikely - I'd say it happens more often then you would think. And this is the case where you're not even being individually targeted. Overall - a little preventative action is hardly a burden and goes a long way to securing yourself online.