There are various reasons why we still don't have the key:
1. The finder wishes to remain anonymous
2. Someone has a tool to find #125 soon
3. The withdrawal was made by someone outside the forum
4. Someone has some other purpose in it, so as not to reveal themselves.

It is certainly puzzling that BCH and BTG have not been paid out from this wallet so far, while the payment was made to the address without any other transaction before, nor was it sent further - which also raises the suspicion that the finder could use some tool that worked for a long time -> found the right key and made the withdrawal, but the initiator himself still does not know that he found solution #120. A lot of unknowns, but I believe that eventually someone will somehow provide a solution, because the solution #120 without indicating the key to the public will simply be a blow to the whole history of these puzzles.