The parent comment was that male date-ability centers around muscle mass. While 'centers' is a strong word it's obvious that being fit is an important factor to attractiveness. By overweight I mean people that are over BMI 25 (which unintended could also include 'roid people'). Over 30 I guess pragmatism wins and other things are more important. e.g. single mom in his 40s will look for caring man with stable life/income.

I don't disagree with you. Being on any extreme negatively affects date-ability outside that niche. There's definitely an inflection point, probably around 'doesn't look natural/healthy', where muscle mass contribution is negative.