LogFAQs > #976044144

Writers moved on to other shows. Couple that with the flanderization of every character, jokes focusing mostly on references because that became a trend, and storylines that shifted from the core family and you get where we are now.

Simpsons used to be a place where new writers would cut their teeth alongside seasoned veterans but it's mostly a hodgepodge of people struggling to find a good gig. It's still a good place for voice actors tho. They put on one of my friends who's now doing a shit ton of work. Even voices a popular Genshin Impact character now lol