Is all this a robbery/steal/theft attempt?

After spending really too much time of my life trying different code and algorithms, buying and running loud hot hardware to solve #66 & #130 I started to wander about ethics of what I am trying to do !
OK, if I have a really really good luck, I will find the key after 1-2 more years!
... BUT !!! Do I have the right to take the coins in the address? ...
The coins (the money) are not mine, and the owner (the assumed puzzle creator) never said that, if I brake the private key, I have the right to take the money !!! (Also the fact that the person has more money than us, does not give us the right to take his money!)
So .. did I spent so much time of my life trying to become a thief? ...
The assumption when I started was ... That is a challenge .. I can do my best .. BUT Do I have the moral right to get money assuming it is by the rules ? ... There are no official rules? We conveniently assume the owner intentions and are ready to get his money ... but what if we are wrong?

Mr./Mrs. Puzzle creator and puzzle addresses money owner,
Please sign a message with any known non-broken puzzle address, and state your will!
Are you fine, if money from these addresses are taken?"
Or "you consider us thieves?" or ...
(the signing #150, #155... public keys are already known and will not compromise security)

Thanks

I am the creator.
Finally, I wish to express appreciation of the efforts of all developers of new cracking tools and technology.  The "large bitcoin collider" is especially innovative and interesting!