Where are all the people who said the creator of the puzzles solved 120, 125 and 130 ?
Where are they ?
Just because you have no programming knowledge and you are waiting for JLP, AlbertoBSD, WanderingPhilosopher, Nomachine, Alek76 and Brichard to produce something so you use it for free and solve the puzzles doesn't mean everyone else is doing the same.
Think about it, if one of these people I named, produces something that gives the user an edge to solve the puzzles easily, do you think he will release it to the public ? He would use it himself privately, the puzzles are worth a lot.
I have another theory for you:
The reason the creator removed these puzzles could be that, when JLP officially made the Kangaroo source code public, they realized this method was highly cost-efficient for solving the puzzles. Since the source code is publicly available, anyone with multiple GPUs could crack them within a few years, or even by luck, making it much more cost-effective compared to the prize.