I bet you this guy never had a key before and is just trying to get a key because he can't afford it. The evidence points towards it.
ONE:
i think i lost my blockland key from a long time ago PERMANENTLY! it would be nice if someone could either share a key with me, or buy me a new key
You're ignoring comments on saying what happened for the key.
TWO:
I no longer have my old email, i cant remember what the old email was, i think the auth key started with something like
Z6TS
All keys so far start with an A, and have five digits in the first part. This kid clearly does not know what he's talking about.
THREE:
does it even LOOK like i remember my old BL_ID?
People took consecutive years away from blockland, such as my friends, and they all still remember their BL_IDs. It is something you don't learn to forget. Such as your email.
I don't think you have an auth key. If you do, PM badspot about what happened about it. If you can't remember your name even, you need to buy a new key. No questions asked.
After searching you up on RTB ID's, there is no user with the name darklord59. The evidence is pointing away from you already.
Kalphiter has a thing displaying the first five digits of an ID. If we could find it, and paste the letters you provided along with an A on front, I'm nearly 100% positive that it would not even exist yet.