Good thing you were able to login back to your account; losing it and not having a way to recover it would suck, and if you hadn't staked your Bitcoin address, it would practically be impossible. I still don't understand why you used a temporary email address, though. I get it not to use your main address, which may also include your name on it, but a completely temporary address you'll never be able to access again. And why didn't you change that sometime after your registration? Anyway, the good thing is that you have your account, and I see that you've now changed your email, so I'm guessing you're safe from it happening again.

Unless this was all a sob story excuse to change email because you sold your account! Haha, I'm joking.