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.
Quite a few of their songs. For a good example, "Hammerhead" is often assumed to be about soldiers in the Iraq war, but it's really about a delusional school shooter.
Justified with "Hammerhead", as the song starts out with lyrics that seem to be about someone fighting in a war, but at the end it's revealed that it's actually the delusional thoughts going through a school shooter's head. The lyrics at the end can be hard to understand if not following along with printed lyrics, so many don't realize the twist.
In the video, too, there's plenty of military imagery, ranging from stealth bombers and generals to the main character being a soldier. However, this all starts to look a bit suspicious when the stealth bombers are small and flap their wings like birds while using their nosecones as beaks, the general is warped and presumably a pure hallucination, and the stacks of Humvees and dead soldiers looks suspiciously like a simple junkyard. By the end, the revelation that this career as a soldier is all in the guy's head is horrifyingly apparent.
"Fix You" from the same album, just as depressing as Coldplay's similarly titled song.
They Copied It, So It Sucks: Many songs on Days Go By have been accused of ripping off Rise Against, especially "Turning Into You" (compared to "Ready to Fall") and "The Future is Now" (compared to "Savior).