In a way reversed engineering can be considered "stealing". depending how one is brought up, and regardless for either for entertainment that I could do it or do they have a different solution of taking the lid off the 2 year old jar of honey, I used to in spare boring time. There are just so many way to enter in the markets. The only differences "now" is how to define trend, anyone under five years usually use what is available for lack of knowledge, whereas if you plodding along in Quantum physics looking for the next great formula to last a few months, no one would ever give a hint.