Why Does Twitter Promote OnlyFans Account?

OnlyFans, a platform infamous for previously making porn a highly successful and remunerative business, is not something I expected to see openly promoted on social media. But apparently Twitter disagrees with me, because the OnlyFans account showed up as a promoted account to follow on my Twitter yesterday (and it would be hard to find an American 23-year-old with less of an internet history relative to OnlyFans content):