I just tag them. For example the guy a few threads above arguing that the conflict is too far from the USA and they shouldn't involve themselves is tagged "stalin apologist".
Nah. While the text does successfully destroy the notion that "if it works it isn't stupid", I still see this as an improvement over so many people who are incapable of anything...
Eh, the character was written as "Ripley", sex unspecified. IIRC none of the characters had their gender written into the screenplay and it was intentional.
It's likely not a coincidence but something they learnt a looong time ago living among humans.
Here's a study that goes into the frequency thing:
https://www.cell.com/current-biology/fulltext/S0960-9822(09)01168-3