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.
Black Hole Sue: Waverley is a non-Fan Fic example. Random Scottish strangers invite him into their homes and swear love and loyalty to him, in spite of the fact he works for George of Hanover. These same strangers are willing to carry his suitcases all over the countryside, nurse his injuries, and risk their lives rescuing him. He is repeatedly described as handsome, athletic, and stunningly intelligent by other characters, as well as the narrator. Bonnie Prince Charlie makes time to hang out with Waverley and swoon over him, in spite of having other (clearly minor) demands on his time. All of his mistakes are forgiven by the Scots and the English, even after several people die because of his screw-ups.
Harsher in Hindsight: Waverly takes relationship advice from Charles Edward Stuart. This Wikipedia entry is fairly terse and limited on the topic, but the point remains. If you have a sick sense of humor, this is possibly Hilarious in Hindsight.