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: Welcome to Night Vale
Alternate Character Interpretation: While most interpretations assume that Cecil is sincere about pretty much everything he says on the radio, some go darker and assume that he's aware on at least some level that things aren't right and the lines he's being fed by Night Vale's overlords are false, but in order to stay alive he can't be seen to openly question them too often. Supporters of this interpretation note that Cecil will continue to talk about recently banned topics like the Dog Park right up until the Police, the Council, or Station Management start breathing down his neck. He's certainly aware enough not to trust Strex Corp after they buy out the radio station in "Yellow Helicopters". This is confirmed in episode 36, "Missing": when Strex Corp shuts down the station, Cecil finishes his broadcast via a pirated signal and states outright that he's normally talking around a lot of censorship.
Similarly, while most people assume that Carlos is a benevolent, NaÔve Newcomer, other interpretations have him being somewhat more morally ambiguous. There are quite a few portrayals as a (sometimes ex) Strexcorp scientist.
Fan Dumb: As famously (and rather regularly) tweeted by Fink, there is a (thankfully) small segment of fans who hate the fact that Cecilos is a gay relationship and don't think it belongs in such a popular podcast. This, despite the fact that the many of the actors are gay or lesbian and the fact that Fink and Cranor want the show to be more inclusive.
The various character designs for Cecil are notable in that some have become so prevalent, people commonly mistake them for canon. These include, but are not limited to, Extra Eyes, living tattoos, tentacles, blond hair, and glasses...although as noted under Internet Backdraft there are many competing portrayals. Just to set the record straight, the only clear canonical references to Cecil's appearance have been the (non)descriptions of him and Kevin in "The Sandstorm" and his description of his outfit in "First Date", and Word of God is that his appearance in particular will remain vague.
Carlos' appearance is a very different matter, as a relatively non-controversial consensus on hair, build, and facial features emerged early on (although there are of course alternate views). Depictions do vary considerably in age, given that he's established to have gray coming in but it's supposed to be at least a little premature.
Tamika Flynn is often portrayed as Black in fan art.
Intern Dana is usually portrayed in fan art as either Black or wearing a hijab
Foe Yay Shipping: Some fans perceive Cecil's inexplicable, obsessive hatred of Steve Carlsberg to mean that Cecil might have dated him once and they had a nasty breakup, or that Cecil just has a weird hate-crush on him.
There's a lot of crossover with The Fairly Oddparents, too, mostly "And now, the weather." "...I thought you said feather." and Steve Carlsberg as Dinkleberg.
Internet Backdraft: It's probably better if you don't have an opinion about Cecil's race, because every opinion will get you into hot water with someone. Incidents have involved death threats against some fans arguing for a white Cecil, and lest you think only one side has anything to answer for, artists with PoC portrayals have also experienced serious harassment, and literal white supremacists making them feel unsafe. The whole thing is moot considering the only description of Cecil boils down to "average height and build, wears a tie, and has a slightly off-putting smile"...and Word of God has confirmed that the creators intend to leave physical descriptions quite vague, especially Cecil's.
Never Live It Down: The black cloud pilot of the diving bird mural helicopter. Geez, you kidnap a bunch of the town's children once and people always think you're up to something!
Paranoia Fuel: Invoked, frequently, especially in Episode 26, which describes the Faceless Old Woman who lives in your home, just out of vision, but whom you can occasionally see in the corner of your mirror. Your computer was running slow, so she has downloaded Firefox for you.
"...They did, however, release several thousand spiders into your home. Fortunately for you—like the faceless old woman—you will be unable to see these spiders unless you look closely. They are highly trained spiders, moving just outside of your periphery. But—and this is also just like the faceless old woman—from time to time, you will feel them brushing against your soft cheeks and lips, as you sleep. So, keep your eyes open!"
It is statistically likely that there is a spider on you at all times. Research has yet to indicate what kind of spider, but it's probably one of the really ugly ones.
The deadliest spider in the world was recently discovered by you and it is as hard to spot as its bite is hard to survive. Wait, that's next week's report, you don't need to worry about that for a few days yet.
Unfortunate Implications: Averting this trope (especially in light of the racial Internet Backdraft listed above) was the goal of Jeffrey Cranor's announcement on Tumblr that he was stepping down as Carlos' voice actor. "It sucks that thereís a white straight male (me), playing a gay man of color (Carlos). Look, I know itís a voiceover, but itís not just that. We do live stage shows, and thatís a visible role for a PoC." The role was recast with Dylan Marron, a queer Latino member of Cranor's Neo-Futurist performance art circle.
Considering the town's extreme, demented Orwellian authority and deadly supernatural occurrences, every citizen of Night Vale could potentially be considered a Woobie, since they stay pretty positive in the face of terror.
Carlos could count double, considering he's an outsider and the Only Sane Man, and thus much more aware of how wrong things really are than lifelong Night Vale residents.
Cecil as well, with the reveal that he has no memory of much of his teenage years. This includes his brother's entire existence, the time he spent as a Night Vale Community Radio intern, and creating the demo tapes that end with him being attacked in his empty house.
Iron Woobie: Intern Dana, who braves the horrifying dog park without a scratch, despite being frightened and starving. As of Yellow Helicopters, Old Woman Josie has become one as well, keeping a steady determination despite Strex Corp's impending takeover and her Angel friends disappearing.