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.
YMMV: Arabian Nights
Archive Panic: Hey, I've always wanted to read Arabian Nights! Wait, there's 1001 of these stories?!
Aladdin and Ali Baba are the most famous stories from Nights even though they are not in the original source material; in fact their oldest documented versions aren't even in Arabic, but come from the French translation of Antoine Galland.
Sinbad the Sailor, who's probably second best known after Aladdin.
Germans Love David Hasselhoff: According to The Other Wiki, the Nights to this day aren't particularly well-regarded in the Arabic world to anyone beyond certain writers and scholars, and it was even less popular back whenever it first was written (as Medieval Arabs thought that True Art Is Poetry). It's entirely possible that the Nights have had more influence on European literature than they did on Arabian.
Holy Shit Quotient: One story has on android pop up out of nowhere. Really unexpected for a story this old.
Shocking Swerve: "Adi Bin Zayd and the Princess Hind" seems like a typical romance with the Happy Ending where Adi marries the princess. Then out of nowhere at the very end Scherezade says "after which time the King was wroth with Adi and slew him".
One notable instance is in the fourth voyage of Sinbad, in which he murders and robs innocent people for their food and jewelry to survive a little while longer in a pit. He apparently didn't even bother to look for an escape, seeing as he easily finds one later, just by following a wild animal that was snacking on all the corpses.
At times it is (or was at least) a convention for Islamic storytellers to use, as preliminary decorations to their stories, phrases like "'Tis said-but Allah alone knows." While this comes across mostly as flourish to a Westerner, to a Moslem it was a way to avoid annoyance from religious authorities as the habitual distinction between lying and storytelling wasn't always taken for granted. If Allah alone knows, The Storyteller couldn't be held to be dishonest as he was theoretically reporting what was said, and of course "Allah alone knows."
More commonly, why would anyone want to marry a man so vengeful and cruel that he enacted a plan to marry a new woman every day, sleep with her at night, and then kill her in the morning — in some versions, for three whole years? A man that vicious should be put down, nevermind the fact that he rules a country.