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.
The last Beagle Boy to be ejected from Scrooge's dream met the Scrooge from the Klondike days and, after being defeated by him, threatened to sue Scrooge for "cruelty against bullies", since he couldn't brutalize anyone tougher than him. In "Attaaack!", Scrooge was complaining about being too old and feeble to handle criminals, prompting a Beagle Boy to claim he'd not like to meet Scrooge during his prime.
Holy Shit Quotient: Chapter 3 B: "The Cowboy Captain of the Cutty Sark". When you start to believe nothing can actually beat the Krakatoa's nuclear explosion, Don Rosa makes sure to prove you wrong.
Memetic Badass: Even Donald (who was previously skeptical to the tall tales of his uncle's past), acknowledges that Scrooge was the ultimateBad Ass in his Klondike days.
The Billionaire of Dismal Downs, when the reader realizes that Fergus McDuck has passed on.
The Empire-Builder From Calisota
The Dream of a Lifetime. If you aren't touched by this one after reading all of the preceding series, you have no soul.
Unfortunate Implications: On a humourous level, the fact that Scrooge gives Goldie money right after they supposedly had sex might look a teeny bit wrong (not least of all to Goldie, given her reaction).