Well, the thugs have figured out what all the stickers mean: http://www.alloutdoor.com/2016/08/24/hunting-vehicles-targeted-thieves/
They are ransacking vehicles in parking lots at gun shows, etc. Maybe what tips them off is the Yeti sticker that someone has more money than common sense.
Anyway, stickers do communicate a message to others, do you accept the consequences or just blow it off? A truck covered with adverts from high end suppliers is saying something to somebody.
I see it as largely oneupmanship, which can be taken as a taunt to some. It appears they are noticing. Regardless, it's your choice, sticker up as you see fit. If you make a mistake and life ransacks your vehicle over it, OK, reassess and make a new decision. There are lots of stickers out there.
YMMV.
Trucks covered in stickers for hunting and guns parked at a hunting show and parked at a gun show...
"Which vehicles hit were the favorite? At that gun show, twelve trucks were broken into and every one of them were Ford F-150s or 250s with pushbutton entry keypads on the doors. The thieves had knowledge of how to pop those keypads out of the door and disable them to unlock the trucks."