That’s the point of my comment...
The constant rumination on who she did it with, why she did it, how many partners….
That type of thinking is much more reflective of the state of the one ruminating…
I'd contend this and double down: if you don't think of these things you're just setting yourself up for failure. These things matter, a lot. Relationship vetting is one of the most important things that most men ignore.
Personally, I actually don't ponder these things much because I'm at the point where I can just tell how much of this girl has been around town based on her behavior in and out of the bedroom.
Real world experience makes me realize stuff, not thinking of imaginary people and scenarios. Besides the binaries are too extreme to matter. 50 guys vs 3 is not a head scratcher.
That's the point of a hypothetical...the purpose is to get you to know what sort of expectations you have from women you date, whats ideal, whats a dealbreaker, and what sort of questions about their past you realistically want to ask them. The example was just to illustrate a point, obviously the fewer sexual partners is better, period.