Earlier quoted context omitted.
>Dude. 1Password. Password managers only protect against certain kinds of attack. Many cloud services do not or can not properly encrypt their users' data, so having a strong password won't help in the event that your cloud provider's datacenter gets rooted.
You can't, but if you use a password manager, you can actually use different passwords on every service. And you can use stronger passwords (if the service permits), thus if they only lost the passwords datbased (assuming it's hashed) you are still safe.
Most providers don't erase disks properly. Takes too much time.