The stories of people who went to hell and came back tend to be both terrifying and inspiring. They might detail encounters with strange beings or describe the process of finding a way back to the living world. These tales often leave a lasting impression on the readers.
The Lords of the Netherworld were the First Master and Second Master, Judge Cui Jue, Judge Zhong Kui, Bull Head, Horse Face, Golden Shackle and Silver Lock, Black Impermanence, and White Impermanence.
It depends on the platform. Facebook, for instance, doesn't really have a feature that lets people know specifically who has viewed their stories. However, different platforms may change their policies and features over time. Some platforms might be considering adding such a feature in the future for various reasons like improving user engagement or privacy controls. But as of now, in general, people can't know for sure if you saw their stories on most major platforms.
On some social media platforms, no. For example, on Instagram, when you view someone's story, they generally can't directly see that you specifically have viewed it. However, there are analytics available to the story creator which gives them some overall information like how many views the story got, but not who exactly viewed it.
In some social media platforms, they might be able to tell if you saw their stories, depending on the settings and features of that particular platform.