When I was young, me and a friend tried to do exactly the same what vas did. We wanted to make a chess-engine, and for that we searched a lot of information about chess engines, and we noticed that crafty was playing a lot better than our own engine. We wanted to understand crafty and to make it better, and we spend time analyzing it. And then fruit appeared, and to us it was like magic how fabian could make the search algorithm so fast. So our plan was now to improve fruit and take some code from crafty too, and perhaps also using bitboards. We never did open source projects before, so of course we haven't been thinking about improving the engines and giving back the source code. Now we wanted to have a strong engine, and to make money with it, that was our plan. But I started school, and there was no time left anymore for programming, so it died somehow.
Later when I started to write open source code, I stared to understand why it's wrong to copy code and to act like it's your own. But at that time, when we "found" the source codes on the internet, it was like we would have found something on the street, and now belongs to us because we found it.
I guess, since Vas seems not to be a open-source guy, I guess that he also doesn't understand very well why it's that bad to copy  from somebody else.
That's why I really understand Vas.

What I really dont understand is, why Vas doesnt appologize to bob and fabian. Since it's clear that R1 copyied a lot from crafty, i wonder why vas doesnt say: "i'm sorry bob, i know i lied, but I was ashamed to admit that I was copying."