Now that mount-glitching through walls has been nerfed, I thought I would draw attention to the methods that we do have left. This video focuses on Mage Blinking through mountains and blue end-game walls, and also shows mount-glitching using a disconnect macro (shown to us by Willaika), and wall glitching using the Darkmoon Tiger and Fishing Chair.
I am so very excited about the Blink through Walls glitch. It has been around since Cataclysm hit, but people aren't talking about it enough. I was using it with the Flying Broom during the Halloween holiday and the freedom was just NUTS. Enjoy the video. Hopefully it gets people talking about the existing methods to get through walls... and helps us discover new ones.
Credit to Willaika aka Bossebo3535 for showing me the disconnect/mount glitch (which is already posted in Exploits).
Credit to Feangren aka Spoutnik, as well as Jakethiverge, for suggesting to blink while mounted.
Credit to Rayne749 for reminding me about the Darkmoon Tiger.
Music is Ashley Beedle's Heavy Disco edit of The Beatles "Come Together".