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.
Designated Hero: During his Heel-Face Turn and feud with Damien Sandow. Cody is treated as justified because Sandow "betrayed" his friend to win the MitB briefcase... except the two openly agreed that it was may the best man win between them when it came to the match. It's even worse when you consider a similar storyline has been used before with Rey Mysterio Jr & Batista, but Batista is seen as the bad guy for being petty and snapping at his friend for not letting him win.
Corrected when Cody revealed the double-cross only upset him enough to question Sandow, and what set him off was realizing at that point that his best friend was such a major conceited ass.
Ear Worm: "WOOOOOOOAH-OH! YOU'RE ONLY SMOKE AND MIRRORS!
Fashion-Victim Villain: A couple of people have pointed out that his long jacket (which is white and a bright red) opens right at his trunks, drawing far too much attention to his groin area.
More generally, others have noticed that the cut of his most recent style trunks make them look like Underoos, and when combined with his wiry build and very youthful appearance, creates something of an uncomfortable image.
Fridge Brilliance: Both in and out of kayfabe for Rhodes' retool into a psychotic heel. He spent the first part of his WWE career in a stable led by arguably one of the best psychotic heels on the roster. He has already shown himself to have charisma (arguably more than Orton), and probably picked up a few tips on how to play that sort of part well - to say nothing of him being a second-generation Superstar. In kayfabe, Orton's character should have been more of a loner, and his relationship with Rhodes likely wouldn't have worked if Rhodes didn't have this side to him to begin with. Makes even more sense in the wrestling style of DiBiase and Rhodes during Legacy.
Regarding the specific self-perception that he lost all his Informed Attractiveness when he got his nose broken by Rey Mysterio, which is what caused his character to go insane at the time. Perhaps the fact that he had to get reconstructive surgery meant to him that his face was no longer pure, which to him made it ugly and garbage as a result. Think of a mix of Death the Kid, Patrick Bateman, and Mankind. He's even hinted at this in an interview about the neo-classic Intercontinental title belt where he was called out on his obsession with appearances, saying that people are hideous inside and out and that he himself was "untarnished" until he was "mauled" and lost "the one thing [he] had over everyone else."
When Cody assaulted Damien Sandow near-immediately for pulling a competitive double-cross in the every-man-for-himself Money in the Bank ladder match, a lot of people thought there was no way he should be taking it that hard. Then he revealed that he actually didn't, but it caused him to look at Sandow objectively and thus what really got to him was seeing Sandow for the ego-maniacal prick he really is. Looking back at the difference between the aftermath of that incident and various other similar ones really highlights what Cody was talking about. Rey Mysterio wasn't exactly happy about the fact that neither he nor his best friend Batista won the world title four-way at Bragging Rights 2010 before Batista turned on him viciously for having broken up a possible pinfall. When TNA's Kazarian pinned his best friend Christopher Daniels in a tag match where they were on opposite sides just days before MITB'13, Kaz did celebrate winning, but quickly hashed it out with Daniels to where they were back on the same page within a minute. Sandow merely looked down at Rhodes with this pompous grin on his face and didn't even really speak to him at all. It screamedYou Have Outlived Your Usefulness.
Fridge Logic: The commentators and wrestlers made a lot of noise about "Dashing" Cody shaving his legs...but...doesn't every single other male wrestler in WWE have shaved legs?
Genius Bonus: The name "Stardust", for fans of Dusty Rhodes' independent "Turnbuckle Championship Wrestling" promotion in the early 2000's, where Cody was a ref under the nickname "The Stardust Kid".
While he and Goldust were Tag Team Champions, during one of the semi-frequent Q&A's he does on Twitter to pass the time in airports or long car rides, someone asked him if he planned to get new gear so they would match. His response was something to the effect of "No, and having us match doesn't seem all that important." Cue mid-2014...
YMMV on this, but his tag team with Damien Sandow, Team Rhodes Scholars, has taken to celebrating their victories by giving each other full-body hugs. Keep in mind that they've just finished a match, so they're sweaty. Actually, the subtext has gotten so strong that it's discussed in-universe, on Cody's end in particular - and Cody's Camp Straight personality likely doesn't do him any favors, either. For what it's worth, though, he has expressed a passing interest in Kaitlyn, and he and Sandow associated with the Bella Twins for a while...
Older than You Think: He was giving "Dashing" tips way back in the middle of 2009 on WWE.com during a promotion by WWE partnering with Gillette called "Be a Superstar". Now, of course he wasn't referring to himself as "Dashing" and his tips were more serious and not hammed up like they became, but it's a subtle early look at his post-Legacy gimmick.
What an Idiot: Got punched out by Big Show for mouthing off at him over his WrestleMania victories, or lack thereof, minutes after Big Show had said he would knock his lights out if he opened his mouth again.