Hey there's some posing things that I'm not a fan of either, ut I'm pretty flexible. Heck, those of us who have built cars in the gasser spirit are really all posers if you think about it. The only real gassers are those built in the period, and the rest of us are just trying to build something like what we saw back then. Many of today's gasser clones are much better built, and closer to what the big guys ran than some of the real barn find gassers are today.
I've got a few things on my car that are there strictly for looks, and I've always thought a Moon tank was one of those things that didn't have to have fuel today, as long as it served some purpose other than just hanging there. Most people hook them up as overflows today. I'd have one if my car wasn't so darn small. When I held mine up it looked like a giant wart on the nose, so I couldn't put it on.