Hey @misterakpan! Thank you very much for the kind words! I am trying to write as comprehensible as possible, but this being my background, I do not know how easy to understand everything actually is haha!
Well, the problem with estrogen is that it is too much and that it interferes with the fishes reproduction and that it can affect us humans also. There are studies (eg one at Lund University) where they have found that estrogen in water actually makes male fish more female and causes deformed bodies and fins.
I greatly appreciate your interest! And no one is a dumbass as long as they stay curious. Thanks again and Cheers!