Gotta agree with your overall message OP regardless of a few specific details to your post that I may not agree with.
Bottom line, I hope he stays gone too.
I just had to retrieve my long forgotten password for these forums and if you look at my post history, I'm hardly ever here, and when I am, it's been to rant and rave about Punk. I guess it's the only thing that gets me riled up enough to care about actually posting on a wrestling forum these days.
We don't truly know why Punk left. Not a single word has come from his own mouth. We've all done the job of filling in that he's probably pissed about part timers returning to win the Rumble and headline WM, the treatment of younger stars, etc. If these are indeed the things that were building up inside of him, I don't disagree with him at all and I don't blame him for feeling annoyed.
But you don't walk out on a contract. Not at this level of performance, or at any level really. All you have in this world is your word, and once you're willing to break that, I don't see why anyone should care about you. The only caveat here would be again if there are some unknown details, like specific things actually being promised to Punk in his contract that he felt he wasn't getting, but I doubt there was anything in writing promising him that he was gonna be at the top of WM or anything like that. Even then, I still don't think you walk out, but at least it would be slightly more justified.
I don't know why the IWC is treating him like a hero when he pretty much spit in every fans face by walking out. I understand you agree with some of his (assumed) motives, but still, he's basically insulting all of you with his actions too.
He's a diva. It doesn't surprise me at all that many backstage are reportedly "not unhappy" that he is gone. It's that sense of relief when a total drama queen leaves the room and everyone else can get back to what they were doing.
It's a strange feeling to agree with his possible motives but also be disgusted by the fact that he left. I just have a long history of growing more and more tired with him. All the stories of treating fans like garbage, attacking fans on live TV, being the center of drama backstage, having his current girlfriend-of-the-month cause a scene backstage because Michelle Beadle jokingly referred to him as "f-face", and now he just walks out. I mean seriously how much of a crooked ego do you have to have and how insecure do you have to be that someone you were purportedly friends with walks by and says something goofy like f___face and you get bent out of shape and say it was disrespectful. Holy blue hell get over yourself.
There's a fine line between being the cool confident person who will voice your opinion and stand up to management, and just turning into a total diva (no pun intended). Punk crossed that line long ago. I imagine he's annoying as hell to work with.
He's selfish. He didn't walk out to make a point about Batista. He didn't walk out thinking he'd open up some room in the spotlight for Daniel Bryan to get pushed farther. If Punk had gotten booked into something that make him look good and kept him signing paychecks, he'd still be on your TV, and he wouldn't care how terrible the rest of the show was. He gave up long ago on his mission to really try to change things in the company and just started doing what he was told so it's not really about that. He's just a mark for himself and apparently thinks wrestling HHH at WM30 in what might be one of Hunter's last angles where he'll physically get involved in the ring before fully moving on to a behind the scenes position is not good enough, meanwhile other guys working just as hard and living the same hard road lifestyle and nursing injuries might not even have a spot on the card. He certainly didn't do this to benefit the fans so the IWC need to stop worshipping. He got enough of your money and he's happy to go home now. Why a person that does that is your hero is beyond me. Bryan? Sure, get behind that. Buy his merch until you can't afford any more. Because he still appreciates where he is and thanks his fans. Don't hold your breath waiting for the day that Daniel Bryan tears up a fan's autograph book in an airport.
Punk reminds me of Vince in that they both spent their lives trying to get somewhere in this business yet simultaneously seem ashamed of it. Vince would rather be in entertainment and making movies, didn't even want the word wrestling acknowledged in his product anymore, and Punk thinks you're a piece of shit for asking him for an autograph or trying to talk to him on Twitter and tries to exist on the periphery of sports like NHL and UFC because apparently he thinks they are cooler. Hell, in his last interview for an MMA show he said if it weren't for himself he probably wouldn't be a wrestling fan any more either. Well, now he doesn't have to be.
Stay home. Let's keep teasing these rumors that you'd actually consider training to get into UFC. Maybe getting into a real fight would introduce some humility back into your life.
Don't hold out until they throw some offer at you and you end up showing up on TV in a few weeks. Stand your ground and stay gone if you're so disgusted with everything about wrestling. You're a spoke in the wheel, a very noisy one at that, someone else can take your place and actually appreciate it, and maybe not be so obsessed with how they are perceived or their spot on the card in a world of simulated choreographed "fighting" that isn't really based on competition.
Closing thought, there was nothing all that impressive about the "pipe bomb" scenario, at least nothing that would attributed to Punk directly. Breaking kayfabe would allow anyone to cut a promo that people would be talking about because we eat that stuff up. Not having a script and calling people backstage by their real names and calling them douchebags and breaking the 4th wall would make anyone the hot topic of the year. Another magic trick sleight of hand wherein Punk was able to convince us that it's really him and his great talent. Give anyone on the roster that mic and say you're free to go out and talk shit until we dramatically decide to cut your mic, it would look good.
My hope is that Punk is one of those people who has a difficult time on his way down running into all the people that he stepped on during his way up. There are a lot of people in his past who will tell you what a scum bag he is, the one topic I didn't manage to get in to while I was blowing off steam here.