I sometimes come off as mr. pro-estrogen, but in reality I know from experience that a certain amount of estrogen is a good thing.
Try tanking your estrogen to zero with an ai. I guarantee you will feel like a zombie, weak, brittle and lacking any enthusiasm.
It's a really fucked up feeling.
It's also anabolic as well which is why many old timers recommend running the least amount of ai on cycle that you can get by with.