What about LBC? I have never used it before although I did want to, but it seemed kinda sketchy to me. However, I've seen lists of Bitcoin addresses found as collisions with older transactions on them or even still having BTC on them. How does that work, aren't they privkey collisions?
you mean "large bitcoin collider"? it has absolutely nothing to do with collision and yes it is very sketchy.
what it does is to loop through private keys from 1 and increment them one by one, on each step get the public key, hash it and compare it with a hashes provided by
puzzle and claims the reward if they found a match.
the space they are searching in is minuscule compared to the 256 bit space that normal bitcoin private keys are in.