I really couldn't care less what people wear to the range as long as it isn't outright offensive or vulgar...
That said, I find that many of the people who wear lots of tactical gear out to the range have absolutely no idea what they're doing - sometimes they are downright hazardous in terms of gun handling. Certainly this is a problem endemic among many shooters, not just these guys. I do take issue with people who dress up and then act like they know everything when it's clear they don't.
I'm disturbed by this reversal where some here clearly believe that shooting at paper from a static position is somehow inferior to shooting in a tacticool manner.
The two ranges that I frequent the most are heavily used by Marines and Navy personnel, many of whom are combat veterans - I've never seen any of them wearing full MOLLE getups or diving/rolling or any of that shit, and they're usually just shooting for fun at paper or clays.