Where is the evidence to back all this fud about the creator of this challenge?
There is no evidence, but there is also no proof that anyone has solved Puzzle 130 using Kangaroo and a massive number of GPUs. I can’t believe anyone would be so crazy as to invest that much hardware in this. It would be more profitable to mine BTC for the same amount of time.
The Creator just wants to turn everyone into a human centipede in the search for the 67th and 68th bits. As he himself stated, there is no connection between all the keys, they were random, so this isn't a puzzle—it's just a GPU strength test, pure brute force. Kangaroo was an outstanding tool for its time and purpose, searching by public key, but there’s nothing heroic or scientific about brute-forcing the lower bits, because there’s no public key there. The experiment on studying Bitcoin's encryption strength is over! Thank you all, you’re free to go!