I wish there was a system that was in place in the ufc as scientific as possible for measurements. I know they used to let fighters fill in details like a drivers license and they would make up shit to keep their opponents guessing. That's pretty bush league. UFC fighters are already dedicating 2 months every fight camp with specific training, everyone should know everyone's reach+height with no inaccuracy. Matters alot for striking and getting used to distance.
As far as the "manlet" shit goes, I think they are even more badass if they are shorter and beat up taller people. I don't give a fuck about them not being 6ft if they win. Someone like Topuria gets my full respect for handling guys taller than him, and if he was 6'5 at LW doing the same, I'd have less respect.