So why should I trust someone who asks me to type my password into a random site? Just because he/she says they will not save it?

If you've entered your real password(s) there, you've already failed the test.

Also a whois on that domain doesn't even return a person's information, some proxied info only (might be scared of law enforcement since he might have the hacked DB data, but even so, if I didn't trust it, I trust it even less now).