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.
Americans Love Baccano!: The Western anime community considers it one of the best series ever. Domestically, it experienced abysmal DVD sales.
Angst? What Angst?: Several characters have good reason to angst about their lives but don't. Doesn't mean they're necessarily all there mentally.
Creepy Awesome: Claire Rail Tracer Stanfield is a standout here. He's probably the best fighter and the most batshit out-of-his gourd character in the series. Now go look through the character page and consider the full implications of that statement.
Draco in Leather Pants: Fermet and Huey are baffling examples; there exist a small but loud fraction of the fanbase who perceive Fermet's abuse as his twisted way of showing "love" to Czeslaw (ignoring the fact that Czes learned a long time ago that Fermet never truly cared about him and only took enjoyment in seeing him in pain), and who insist that Huey is at least a tiny bit regretful about his treatment of his daughters, even though it's made abundantly clear that he doesn't care about either of them, would off them both in a second, and views them as nothing but experiments - that failed.
Granted, there are a lot of likeable characters in this series. Ladd, Claire, and Chick in particular are extremely popular.
Chane is one for Narita himself. Purportedly, she was originally slated to die during the events of the Grand Punk Railroad novels. However, he became fond of her, and subsequently spared her.
"Funny Aneurysm" Moment: You know how ,embers of the Martillo family find much amusement in the fact that Firo manages to remain a virgin into his nineties (especially since he's been married for over twenty years)? In Another Junk Railroad featured a conversation between Firo and a concerned Berga that heavily implies that Firo has a Paralyzing Fear of Sexuality... because he was almost raped when he was younger.
God Mode Sue: Surprisingly averted with Claire. The writer has stated that the reason he doesn't get his own plot line is because of how easily he could overtake the entire series.
It Was His Sled: Claire Stanfield is supposed to be a secret character. The fact that he exists is only the beginning. If you've been reading this page, it's likely you know pretty much everything about him at this point.
It's also rather telling that in the opening, while every other pivotal character is given a proper introduction, he only gets a "blink and you'll miss it" appearance.
Every time Fermet is mentioned by Czes is this. The fact that Fermet practically oozes with pederast vibes makes it worse.
Pretty much any scene with the Rail Tracer until The Reveal, and plenty more afterward too.
Even though he kinda deserved it, it's still disturbing when Claire tortures Czes after he finds out Czes wants to kill every one in the train. What makes it worse is, due to him being immortal, Czes looks like a little kid.
When Mary is hiding in the closet, she accidentally knocks over a broom, letting one of Ladd's goon know where she is. We see Mary in the closet, listening as he gets closer and closer. He opens the door and...
For even more nightmare fuel, the way he talks implies that he wants to rape her. Thank God for Chane.
Ennis breaking down in tears after meeting Isaac and Miria for the first time. The novels drive it home by stating that this was the first time she had ever genuinely smiled or cried.
A couple different times with Czes; when he's rescued by the magnificent duo and they tell him he's a good boy, and when he is reunited with Maiza.
The ending theme. It will bring tears to your eyes, no matter how lighthearted the series is.
Nice accidentally blowing herself up. Becomes even more heartbreaking when you realize that she was "eight" at the time.
It gets especially tear jerky when Jacuzzi shows up with a gaudy tattoo on his face so his face will stand out like Nice's (which is now permanently scarred) and she won't feel so alone. And then they both cry; Nice because she's so moved, and Jacuzzi because that's just what he does.
The end of Bullet Garden when Illness breaks down after hearing a hymn of SAMPLE over the phone
Czeslaw, when not being a trauma-induced Creepy Child, pretty much plays this trope to a T. His horrible past aside, his occasional homicidal tendencies in the name of self preservation as well as his less than kind disposition at times could make the argument for him being closer to the Jerkass Woobie.
Also, Niki from the light novels.
Jacuzzi, with his crippling shyness and constant tendency to burst into tears makes him one of the characters that you just want to hug tightly.