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.
Badass Decay: Heroes Napoleon Solo and Illya Kuryakin are sometimes subject to plot dependent Badass Decay, when necessary. E.g., in the third act of the third season episode, "The Five Daughters Affair, Part II", Solo and Kuryakin fight THRUSH's "karate killers" (who despite that name (as given in the credits) do very little actual killing in the episode) for about the sixth time in this two-part adventure. Despite holding their own in several earlier fights with the karate killers, in this scene Solo and Kuryakin completely lose whatever fighting skills they've demonstrated earlier, and are straightaway handed their asses by the THRUSH "killers" in mere seconds. This is necessary, of course, to set up the fourth act's climax and resolution (therefore "plot dependent").
Complete Monster: THRUSH agent Randolph of the Five Daughters Affair two-parter. His plot – releasing seawater-derived gold onto the market to create massive profits for THRUSH – isn’t monstrous in and of itself, but his methods, which include: seducing Dr. Simon True’s wife, killing her husband with poison, gleefully taunting her before murdering her, attempting to behead Illya in an ice-chopping machine, smacking around Sandy and shooting an unarmed elderly man just for raising his voice to him, coupled with his general Smug Snake demeanour, cement him as probably the series’ nastiest villain.
Fair for Its Day: Illya Kuryakin is not only a Russian, but a Soviet patriot and a commissioned officer in the Red Navy (at one point, he even appears in Soviet naval uniform). Still, he is never portrayed as anything other than a trustworthy ally and decent man. Not bad for a series first broadcast in 1964.
They Wasted a Perfectly Good Plot: "The Hula Doll Affair" features two brothers who happen to be rival THRUSH executives in a plot involving the title doll, which has a heat-sensitive explosive inside, and Napoleon impersonating a delegate from THRUSH Central. A recipe for power plays and suspense? It likely would be had it not been in season three and scripted by Stanford Sherman, who also did the one with Illya riding a bomb filled with essence of skunk ("The Super-Colossal Affair") and the one with popsicle bombs aimed at Victor Borge ("The Suburbia Affair"). Throw in the executives being played by Jan Murray and Pat Harrington, and their mother and real THRUSH Central member being played by perennial Large Ham Patsy Kelly, and... oh dear.