I found this exploit when using the "bypass instance portal" glitch from this post (How To Bypass Instance Portals, Mobs, and Doors).
You need a Mage with the Glyph of Rapid Teleportation (Minor Glyph) and the following macro:
/run AcceptBattlefieldPort(1, 1)
/run ForceQuit()
Step 1. Queue for a Battleground.
Step 2. When the Battleground queue pops, hit the macro.
Step 3. Log back in. You should see "In Progress" when you scroll over the Battleground icon, but you should also still be standing wherever you disconnected.
Step 4. Create a portal to anywhere except Stormwind and right click it.
You should now have a 70% run speed buff with honorless target, while remaining in the same area where you created the portal.
By using this exploit you can have an infinite 70% speed buff if you make a portal every minute. You can also have an infinite honorless target buff if you click on a portal once every 30 seconds.
Here's a video of the exploit in action while reconnected after using the macro when the BG popped:
If you are having trouble and getting the "Deserter" debuff, try this suggestion from xPlacebox:
For those having issues using the macro I suggest just trying to click Enter BG & alt F4 same time. I suggested the macro because people usually like little macro's haha, but I just click it and alt f4 and it works 100% of the time. Also another friendly reminder that this exploit wouldn't be possible without RaoV or Novalok.
I hope you enjoy the exploit while it lasts, I could see this being hotfixed in the near future! I realize I didn't blur out my name, I'm not too worried about it, haha.