This is a false dichotomy. In addition, the hypothetical personas are contextual and fluid. I don't evaluate a person based on a list of relationship stats because it's likely I don't initially have access and I communicate with them face-to-face.
Well, it's not a real false dichotomy because that hypothetical is hyperbolic merely for argument's sake, not to be an actual choice.
Of course there are a lot of things that go into whether it's worth your time to pursue a potential relationship, from attractiveness to chemistry, etc.
Which is why I said it's part of the Signal and Call game. No one is saying to write down the probabilities but you don't have to, your mind has its own way of calculating these things subconsciously and quite quickly (although we will ignore it at times). And for others, they're not very adept at reading signals to begin with.
I just think its naive to believe a person's promiscuity doesn't factor into to such decisions for certain people (again, not all).
Speaking of access to information, there are plenty of times you can have access (mutual acquaintance) or they'll straight up tell you. I don't know how often mathematically this occurs, but it does.
What I contend is the false projection of one individual's value system and bias to "99% of people" making the same decision on a highly improbable and hypothetical comparison.
Oh, I'm not arguing everyone would react the same way. For one, many men and women rather be with a woman who has played the field more. Some people are convinced they can change others (whether right or wrong). Others can't process information. All these things are common.
I'm just saying that it's a signal. No different than finding out someone is a serial cheater. Wouldn't you factor that into your thinking of pursuing a relationship? Again, it doesn't mean you wouldn't pursue one, but it would play a part. How much depends on the individual person.
edit: To clarify I don't think any of this is wrong (regarding how many partners one has). That's personal and no one should be looked down upon for number of partners. I'm simply arguing such information can be a signal as to the type of partner one would be, relationship-wise. And not a guarantee.