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: Rey Mysterio Jr
Fanon Discontinuity: His first World Heavyweight Championship run mainly due to that was the period where WWE was milking the late Eddie Guerrero's name for all it was worth. Not to mention they dropped "heavyweight" from the title's name for the duration of Mysterio's reign, as if no one would notice.
Fridge Brilliance: If Rey Mysterio's been hiding that knee brace under his pants for all these years, the 619 (Tiger Feint Kick, essentially a knee to the face) as a finishing move suddenly makes a lot of sense.
HSQ: Taken Up to Eleven in his first "I-Quit" match with Chavo Guerrero on SmackDown. And the biggest "holy shit" moment of the match was that Chavo actually won, by hanging Mysterio upside-down from the set and smashing his knee with a chair until Mysterio screamed the words.
Only for a rather nasty case of History Repeats to come into play later on with Mysterio hanging Chavo upside down on a turnbuckle and doing the exact same thing to Chavo. Unsurprisingly, Chavo quit that time.
Misblamed: A type II example concerning the 2014 Royal Rumble. Rey Mysterio is one of the most popular, beloved Faces in the WWE today. Yet when he came out as number 30 in the Rumble, he proceeded to get nuclear heat from the crowd. Why? Because the fans wanted to see Daniel Bryan in the Rumble, and were pissed that he wasn't. So poor Rey had to take the brunt of their criticism, even though the fault was most definitely in the hands of the executives.
Let's repeat that: Rey Mysterio got booed. That should give you an idea of how serious this is.
Vindicated by History: When WCW closed in 2001, the then WWF initially passed on Mysterio's contract because they had no interest in him. They changed their minds and hired him in 2002. Now he's a 3 time World Champion.
Win the Crowd: Not so much the crowd, but the fact that Rey has become World Champion makes this more of a corporate one. Due to his size, wrestling style and the fact he isn't a star "made" by WWE, Vince McMahon was reluctant to ever push him into the main event. The sheer quality of his matches and ability to get over with WWE's target demographic, however, eventually led to him becoming one of the company's biggest names and a consistent main eventer.
Iron Woobie, that is. Nobody ever had a harder road to the World Heavyweight Championship, but Rey hardly ever cracked on his way to victory.
X-Pac Heat: Believe it or not. Never in the USA, but after he unmasked in WCW, he got some seriously negative reactions in Mexico. It looked even worse because he was at the time feuding with (surprise) Psicosis, who was a holdout against unmasking. As it turned out, the conclusion of the feud was supposed to be Psicosis winning Rey's mask, but since Misterio had already unmasked, CMLL's governing body refused to allow Misterio to wrestle masked. This forced a rebooking to a much less meaningful stipulation, and Misterio ended up winning, which didn't make the CMLL fans happy.
Also, as mentioned above in Misblamed and Replacement Scrappy, Rey, got insane nuclear heat when he came out as the 30th Royal Rumble entrant instead of Daniel Bryan, who fans were expecting.