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: Steam Powered Giraffe
Actor Shipping: Inverted. Many fans ship Walter Girl Paige with Rabbit because Paige Law and Bunny Bennett are dating in real life. This also applied to Walter Girl Brianna and The Spine when Brianna Clawson and David Bennett were still together.
This has already started happening with The Spine and Rivet (an original robot character created by David's girlfriend Gabi) as well.
Alternate Character Interpretation: Some fans see Peter Walter I as a Mad Scientist who treated Delilah like a prize to be won without regards to her feelings, and see him as taking advantage of his maid Iris Tonia's infatuation with him to get her in bed. Interpreting any of the bots as a Stepford Smiler is also becoming increasingly popular in fanworks.
Which would make the song "Brass Goggles" a rare moment of honesty.
Base Breaker: Holy mother of god, Rabbit's upcoming Gender Swap. When it was announced via Bunny's blogspot, the fandom reaction ranged from overjoyed that the band would get another female, to enraged that such a massive change would be taking place, to worried that an openly transgender character would impede the band's future success. Some fans have even accused Bunny of being selfish for making the change, and have vowed to leave the fandom because of it.
Epic Riff: The guitar in "Automatonic Electronic Harmonic" and the keyboards in "Ju Ju Magic".
Fanfic Fuel: Several parts of the band's history have yet to be elaborated upon, or left deliberately ambiguous, such as the stories behind some of the albumartwork, the backstories and fates of song characters such as The Suspender Man and Airheart, The Spine's desire to be human, how the Walter Girls came to work for Walter Robotics, and why Rabbit and the Spine have green eyes despite being powered by Blue Matter.
Bunny herself encourages this during her art livestreams, revealing huge chunks of information about certain aspects of the band's backstory while keeping deliberately vague (or silent) about others. She once teased, "There's a lot of secrets in the Walter family—and we're just scratching the surface."
Harsher in Hindsight: The band's jokes about how the audience should "enjoy [the Jon] while he lasts" because of his finite fuel supply became this when he actually left the band.
Ho Yay: Hatchworth's debut at the Youmacon concert was filled with a lot of him being very close with The Spine.
The Spine: Hatchworth, tell me again how much you love me. Hatchworth: Oh, very much.
Hatchworth:(in response to a fan's compliment) Oh, thank you. You're my favorite pretty girl in a pretty dress. (to The Spine) That is of course except for you, The Spine.
Love It or Hate It: The band is either made up of excellent performers who utilize their Steampunk aesthetic to show off the full range of their talents, or average musicians who simply hopped on the steampunk bandwagon to get popular.
Misaimed Fandom: As evidenced by one couple who considered using it as their wedding song, there are at least a few folks who see "Honeybee" as a straightforward love song.
The same applied when Walter Girl Carolina replaced Brianna. Even when the news broke that she would be replacing her permanently, the steady stream of love and fanart for her never slowed.
The Scrappy: While not as extreme as other examples, quite a few fans dislike Upgrade, seeing her as a useless addition to the band with sub-par vocals and an annoying personality. To a far lesser extent, the Jon has been seen as this since he was fired, with some saying he was holding the band back from achieving their full potential and contributed little creatively.
Tearjerker: Most of their songs are pretty lighthearted, if not comedic, but some are ... less so.
Especially if you believe the popular Fanon that the song was inspired by the death of Walter family member P.A. Walter IV, a NASA astronaut who was killed in an unexplained explosion about his ship.
The malfunction that occurred during the February 17, 2013 show. The 'bots had a sudden breakdown between sets, and booted up with a little-used file ... containing the events of the 1897 Copper Elephant War. The result was nothing short of heartbreaking.