Never seen or heard of anyone doing it for a 5er or standard receiver hitch.
Also don't check the bolts holding the bumper, motor mounts, truck bed or a host of other items bolted on the truck.
Only items where I've heard it suggested is for lug nuts but even there, it's typically after the first 50miles and then never again (unless you remove the tire).
I suppose if you just installed it, after the first trip doing a quick check won't hurt.