PaterAlf: No, it's completely bad and unusable for people who clear their browser cache after each session. You'll have to enter the mail code every single time you want to log in and that's extremely annoying.
I can't speak for everyone.
From my experience, it's a perfectly fine option, and I'm glad they created it.
I don't clean browser cache 24/7, so I don't get aggravated.
I'm sorry you find it useless, but keep in mind it's useful to other people. Send suggestions to the blues, maybe they will change it. It can't hurt, so might as well try it.
PaterAlf: And let's not talk about the fact that the system doesn't prevent hacking, because it only informs you after your mail or password was changed. And at that point the damage is already done and there's nothing you can do about it (except contacting support to get your account back).
And what does? No offense Alf, but if you have a solution in mind, please share with us.
And you're wrong. If someone else try to login in my account, he/she will need to insert a random code.
If I receive an email with code suddenly, it will be a clear sign something is going on.
"Think twice before you speak, because your words and influence will plant the seed of either success or failure in the mind of another."