OP isn't naming his rig, he is adding *his own* name/handle.
I'm assuming he is just throwing on a small decal, not painting it across the the side of his jeep. Worst case he decides he doesn't like it and peels it off later.
Do whatever makes you happy dude. Loads of people have stickers and misc aesthetic mods; personally, I like seeing vehicles that are slightly different and owned by an enthusiast.