I don't follow any of these people that were making such claims. The people I follow are either media types that made a comment one way or the other, or friends that are fans of either school. As you know, with Twitter, if you click on the tweet, you see comments below it. That's where I saw all of this.
But to the point - I don't think there are that many people that like the black ones BECAUSE they think they look cool. The random ISU fans I saw tweeting said they liked the black ones because Hawk fans mocked them for using a color that the school doesn't even have.
Which brings me to this complete "little brother" of a gem, and yes, that is a real quote down below in bold:
https://www.brandmarketing.iastate.edu/brand-elements/color-palette/
Colors associated with other public institutions, such as the one on the eastern side of the state, should not be used.