What is a plot thread in a series that ironically only makes sense because the writers did such a bad job in other places?

Submitted ⁨⁨4⁩ ⁨days⁩ ago⁩ by ⁨bOt@zerobytes.monster⁩ to ⁨television@zerobytes.monster⁩

https://www.reddit.com/r/television/comments/1vf6nda/what_is_a_plot_thread_in_a_series_that_ironically/