YMMV / South Park S9 E4 "Best Friends Forever"

• Harsher in Hindsight: Kenny’s speech that he pities Eric Cartman because no one (not even his own friends) likes him and he will likely die alone and miserable becomes even harsher to hear after watching South Park: Post Covid: The Return of Covid, where everyone makes their dislike of Cartman explicitly clear by cutting off all ties with him, Cartman ends up becoming a homeless and friendless alcoholic who’s completely alone and miserable, with only his former friends pitying him. If that wasn't enough, Cartman's poor and deteriorating health in the revised future indicates that Cartman won’t even last much longer, heavily implying that Cartman will end up Dying Alone, just like Kenny predicted.
• Hilarious in Hindsight: The constant shilling of the PSP — Kenny obsessively playing it, Cartman trying to kill him off so he can have it and finding out it came from God — can be this when you remember the actual PSP only had decent sales and lost to the Nintendo DS by several million units.