This is a lesson that can be applied to other aspects of life as well. I avoid any stickers, decals, etc. on my vehicles. No NRA decals, I don't want someone breaking into my car thinking they might find a firearm. Nothing with my favorite micro-brew, nothing indicating I'm serious about photography, etc. I frequently see vehicles now with little decal cartoon figures in the rear window representing family members; not something a person would want to advertise to a pedophile in search of a target. The sole personalizing detail on the Grand Prix I usually drive is a Navy veteran's vanity license plate with VA97, the aviation squadron I served in 40 years ago.
It's easy enough in this connected age for someone to discover your personal information, I try to not give it away.