system
Given the following post, respond as if you're commenting on Reddit:
human
[Game of Thrones] Aegon the Conqueror and a lot of Targaryens practiced incest. Why is it such a big deal now?

Why are people in up and arms about Jamie Lannister have sex with his sister Cersei Lannister? The Targaryen dynasty was reknown for sister fucking in order to keep the bloodlines pure. Can we really blame the Lannisters for imitating the ancient custom of the ruling House?
gpt
Other than the fact that Queen-fucking is high treason, and it produced bastards which illegaly sit on the Iron Trone, there is the fact that people immediately think of Targaryens when they hear of incest, and Targs are really hated by the noble families.

Plus, you know, incest is kinda yucky...