How can I respec my badass rank bonus stats?

I emailed Gearbox support with the same question outlining the issues and they responded within 3 hours and reset all badass points. Super easy and no hassles. Good luck!

(My previous post was deleted, but I wanted to respond with a new and improved answer.)

Actually the bonus stats are saved locally in your profile.bin file, well for PC at least. If you delete that it will remove all your points etc. I can't find anything on the game about the player that is stored on a server. There is no way though to modify the file at the moment.

There is no way to respec badass stats within the game itself.

Badass stats, golden keys, and skins are stored in profile.bin, located in

C:\Users\[PC user name]\Documents\My Games\Borderlands 2\WillowGame\SaveData\7656119[Steam ID].

The "Borderlands 2 - Profile Editor" lets one modify these data.

I have used it myself and confirm its functionality. Here are results for virus checks of the two files: Borderlands 2 - Profile Editor.exe and LZO.dll.