To Someone likes to solve crossword, somebody likes to play chess.
I like RE because I need to strain my brain like when I solve a crossword, think and analyze like when I play chess.
After every cracking, I get a moral satisfaction, I'm happy with my success, success in cracking my friends.
I'm glad when I receive a message from the developers, where they are grateful for cracking of their program and promise to eliminate the hole in the protection of the program in the next release.
I thank everyone who writes articles about RE, makes tutorials, new tools, shares my knowledge with others.