These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Broken Base: Some say it's one of the best episodes of the show. Others (including Matt Groening himself, which explains why his name isn't in the opening credits) say it's one of the worst because it's a crossover, Matt Groening promised The Simpsons would be an anti-sitcom filled with all the things that normal sitcoms wouldn't have (and, apparently, that includes spin-offs and crossovers), and most Simpsons fans at the time thought The Critic wasn't a good show.
Crosses the Line Twice: In Barney's film, we see him introducing himself at what seems to be an Alcoholics Anonymous meeting, but we zoom out and see Lisa informing him he's actually at a Girl Scouts meeting. To which Barney says "Is it, or is it that you girls can't admit you have a problem!?"
"Funny Aneurysm" Moment: McBain's Take That at Woody Allen, "I'm a neurotic nerd who likes to sleep with little girls.", originally referencing Allen's marrying his adoptive daughter Soon-Yi, became more winceworthy in 2014 when her stepsister Dylan Farrow revealed that she'd been molested by Allen while growing up. On the other hand, Allen is still married to Soon-Yi and she's now in her 40's.
Tear Jerker and "Funny Aneurysm" Moment: Barney's film about his alcoholism ruining his life (except for the part where Barney mistakes a Girl Scout meeting for an Alcoholics Anonymous meeting), which makes the flashback of how Barney first got drunk (Homer gave him beer the night he was studying for his SATs — and what's worse, Barney was a Harvard-bound genius in his teens) harder to laugh at in hindsight.
After winning, Barney promises to go on the straight and narrow, at which it's announced he also won a tanker full of Duff beer.
Barney:JUST HOOK IT TO MY VEINS!(truck driver obliges with an IV)