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.
Nausea Fuel: The Bergeron-era segments "The Naughty Files" and "A Moment of Ewwwww!" specifically showcase grosser clips than the producers were allowed to show before. Snot and vomit gags (usually via babies) have popped up elsewhere as well.
One $10,000 winner featured a decapitated fish head on a plate in a sushi restaurant. It was still moving.
Replacement Scrappy and Seasonal Rot: The Fuentes/Fugelsang era is often considered the show's nadir, and rarely sees reruns. On the other hand, the Bergeron era is often considered at least as good as, if not better than, the original Saget episodes.
You can also apply this to dogs. A lot of this is likely because the studio audience has the final vote, and it's usually filled with either grandparents or young parents. The parents are more likely to find cute videos funny.