no he hasn't given any definitive reasons as to why he walked out. We do know he doesn't like his storyline, doesn't like the Dave thing, doesn't like what happened with DB (or what they were going to do), and he didn't like his Triple H feud. We are all going off things' we've read, seen on youtube, etc., I'm merely giving my thoughts, according to what I've seen and read as well as from past instances with Punk, as to why he left and what he stands for. Just as we're all giving our thoughts. In all honesty, a lot of it is pointless as it could be a work lol