Yeah, but men who are not producing any sex hormones won't have estrogen or testosterone. Testosterone is responsible for creating estrogen, albeit in small amounts, in men, so it's hard to say whether the lack of T, or the lack of E due to the lack of T, resulted in the Castrati being so tall.
With that said, I'm going to start taking supplements to see if that'll help. Everyone has been commenting on me growing the past two years, whereas I hardly grew prior to that. Maybe there's a glimmer of hope.