It seems you should learn a bit.
The License file is a part of miner package. Besides copyrights, it also describes what you may do and what you may not. Do you state that you may ignore "License.txt"? If so, that's what I mean when I say that some devs don't respect licenses.
You're actually right, but many countries have laws that protect reverse engineering (I believe a lot of Europe does) regardless of licenses.
Some do, but that typically is only if you actually purchase something. Something that is offered for free will not cover that as the license explicitly states what is allowed if you want to use it (in whatever form).