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.
Family-Unfriendly Aesop: Likely unintentional. During the movie, Witch Hazel performs a song about the importance of being different. While nothing wrong with that in and of itself, because it's sung by a witch (and from her perspective), and because witches (at least in this movie note and by extension, the TV show) are evil, some viewers may have thought that the movie implies that being different is evil.
Les Yay: Not least, perhaps, between Witchiepoo and WitchHazel (Cass Elliot) in the movie.
After decades of being goaded for a definitive answer on whether the show was one giant pot reference, Marty Krofft did finally admit that Pufnstuf's title was a reference to reefer smoking. However, the title was apparently born out of a childish sense of humour rather than an active interest in drug culture, as he was seeing if he could pass it by the NBC executives without being called out on it.