Ah, I also see now that by adding your Public PGP Key to your account on Dread you go through essentially a decryption practice. I think I'm starting to understand the process now... when I first started reading about it I thought it was an actual application (like hangouts or whatsapp) but it's more of a verification process that can be used on any platform.
Can you elaborate on that a bit? Doesn't the fact that I'm able to decrypt Nightlife-King's message mean that I've essentially verified the key (and therefore, the fingerprint)? And how would I go about doing that anyway, the guide says nothing about fingerprints...