Re: VHF Protocol
I think you're confusing apples an oranges, Zeek.
Bow numbers are usually required by state registration laws and specificed as arabic numberals of a certain height and type that people buy "off the shelf" which also means a limited font selection.
Transom art, including names, is entirely optional and extra for those folks, much like your choice of socks. Argyle, tube, whatever, that's unregulated.
Except for the folks who have documented vessels, and there's a limited use to that for folks who will mainly keep and sail a boat in one lake. Folks with documented vessels have different and fairly simple requirements as to the legibility of transom names, and "illegible" is flat out illegal for documented vessels. Not that I'd expect the USCG to care much in a lake, even in a big lake. Their priority will be BWI and potty checks.
But one is apples the other oranges, two different sets of rules apply.