No one likes rage quitters. Even rage quitters hate rage quitters. Not only does the recently-released Street Fighter V has its fair share, but aborting pre-defeat is an excellent way to circumvent the associated consequences. The good news is, Capcom has plans for these digital ne'er-do-wells.
According to the latest Street Fighter V update post on Capcom Unity, the developer is "well aware" of the issue of players who intentionally disconnect to preserve their stats.
Although it can't provide specific details, or even a date, Capcom is toiling away at a "permanent solution". In the meantime, it won't be standing idly by:
We are working on a permanent solution to this problem, though we don’t have an exact date to share with you at the moment. That said, we are going to take direct action starting next week to punish those players who are abusing the system.
This punishment will be severe for the worst offenders, but we will need the community’s help with this. We will follow up with more details next week, but over the weekend, please record every instance of rage quitting you encounter.
The post mentions that PS4 players should use the console's Share function, but states "any video evidence will suffice".
SFV Post Launch Status Update Vol. 5 [Capcom Unity]