I myself have had a fair share of crashes but I’ve often always recovered from it in terms of my skill rating. Once again if you are crashing frequently you need to stop playing competitive play and work to fix the issues and test in a non-competitive play mode. Even if you think you’re an honest player, you’re still leaving the game every time you crash.
The tech support forum really isn’t the place for debate, that is what the general discussion forum is for. However I can say with certainty, that if a player is bleeding SR thinking because it is due to their crashes or disconnections, it is because they are either crashing or disconnecting to the point where they really should not be playing competitive play, or their gameplay and skill is inconsistent enough and losing games on the overall average.