i’ve seen this done by communities that have no competitive or monetary motive whatsoever, by enthusiasts that just have a love for their game, like smwcentral and sonic retro when it comes to rom hacking. it kind of surprises me that considering the advantages that could be gained from knowledge like this, that nobody in this community has (at least publicly) gone through with such an undertaking. imagine the possibilities… someone could take that information and write an app that would allow one to instantly test combos or option selects while considering hitboxes, pushback, special states, and other quirks etc. we could even see exactly how things like hitstun deterioration and other little understood game mechanics work. while this is by no means trivial in most cases, the results could more than justify the work. take the smash community for example… while we rag on them for things like brawl+ or project m, the major, undeniable benefit of digging into game code is that they have an absurd understanding of the engine of brawl and melee.
EDIT: also, i personally have a relatively decent knowledge of 68k assembly from my previous exploits in rom hacking. i was at one point personally motivated to disassemble kof98 and 2002 years ago, but lost motivation as the games are basically dead.