Maybe you are thinking of a different rivet than I am but the ones I was referring to have a star shaped head and can be removed and put back in without a problem using a star key (I think they are called). Maybe they aren't actually called rivets but that is what the trailer that we put graphics on had.
i just finished a 16ft trailer that had screws instead of rivets. why on earth would you remove it, there's no real argument there, just people looking for a shortcut and trying to do it the wrong way.
I did a very similar trailer with chrome and had to remove the screws. Granted this was 15 years ago. Looked great though, chrome on a black trailer for a motorcycle racing outfit. Wish I still had pics