That's an overview, not specifics and not details (verbiage that first you and then I used). It's a shitty sleight of hand, so I'm going bring this back around and then I'm done with you.
You stated that rank is a poor proxy for skill. https://news.ycombinator.com/item?id=21952133
I stated you can't know that without details. Knowing that winning gives you more LP and losing takes it away is not detail nor specifics.
You can't know, but you're going to hold onto that branch rather than be a little introspective and consider that you may be wrong.