10 years later and a new exploit was found

[KimmysGotGame]

Some people discovered a glitch where killing vehicles triggers kill skills that shouldn't go away unless you quit the game or go in a vehicle. Stacking them too high will make the game even buggier than normal though. So far they've been confirmed to work on Gaige

 

and on Maya.

 

 

I'm not sure if this works on consoles but if it does it'll make the trophies much easier.