Comment 16 for bug 1857398

> It is not appropriate to require the user to type a password on every
> boot by default; this must be opt-in.

My suggestion was not to make EVERYONE use encrypted ZFS with a passphrase, only those who selected an encryption option within Ubiquity. (Perhaps my code was misunderstood as a implementation suggestion instead of a proof of concept for developers.) Having users opt for encryption and password would leave ZFS in parity with other filesystems installed within Ubiquity. I understand the original idea is to transparently force encryption on everyone but not bother them. Not only is there a performance issue, but you could have some really annoyed people if they ever needed to livecd/mount that filesystem and discover the hidden encryption they have to figure out how to work around.