Angrish: It's implied that AntonyC devolved into this during the "Technical Difficulties" scene during "Reviewing is Magic 4", when Luna, after having been absent for the entire conflict, casually asks "Did I miss anything?"
April Fools' Day: On April 1, 2014, several brony analysts posted videos regarding their thoughts on some Season Five spoilers that had supposedly been leaked. Lending the whole thing an air of authenticity was the fact that all of them were sharing the exact same news: Princess Luna voluntarily transforms back into Nightmare Moon in order to help fight off another threat, creator Lauren Faust returns to write an episode, Pinkie Pie gets a coltfriend, and fan OC Kimi Sparkle appears in an actual episode. However, it turned out to be part of a collective April Fools' prank spearheaded by AnY Pony.
The following day, the joke became downright meta when Kimi Sparkle herself - who is not a real analyst, but a parody of such - posted her own video expressing outrage over being taken in by the fake spoilers.
Art Evolution: BronyCurious' videos, preferably the art style of his OC. note As of August 14, 2014, it has changed again.
Tommy Oliver is a HUGE Rarity fan. Beyond that though, he has a strong appreciation for character depth and complexity.
Similarly, Digi has a massive fondness for Applejack.
Any allusions to religion or classical literature is greatly appreciated by AntonyC.
KP loves "reformed" Discord to borderline fangirl levels, not to mention his voice actor, John de Lancie (she even has a video dedicated to him!). Any episode review with Discord in it easily clocks in at least twice the length of her other episode reviews!
Do NOT mention "A Canterlot Wedding" in AntonyC's presence.
More specifically, do not bring up Luna's suspicious absence.
He was also quite ticked off by Equestria Girls turning the Mane Six into high school students.
Don't ever mention Friendship is Witchcraft in the presence of Voice of Reason if you value your life.note The same applies to Mr.Enter, if you count him as part of the community, which he himself increasingly does not.
The mere hint of a reference to the episode "Bridle Gossip" will send him into a rage.note (this does not extend to Zecora herself)
Big Damn Heroes: Tommy Oliver pulls this in "Thoroughly Fanboying: The Return of Harmony" to restore a recently discorded Digibrony, by reminding him of his love for the franchise.
Caustic Critic: Zigzagged. While they are nice people for the most part, they all can be extremely hate-filled towards any episodes and fan-works they don't like. Though AntonyC, Voice of Reason, and Tommy Oliver definitely take the cake.
Driven to Suicide: Played for Laughs in "Reviewing is Magic 4" when Tommy's statement that he finds "A Canterlot Wedding" to be ingenious seemingly drives AntonyC to shoot himself in the temple. Turns out he was just transforming into pony mode.
Face Palm: AntonyC does this in "Reviewing is Magic 3" after a fan points out that he misspelled mortgage.
The Gadfly: Tommy occasionally demonstrates this trope, most noticeably in "Reviewing is Magic 4", and his referral to Fluttershy as "Cheesy Gordita".
Large Ham: AntonyC, easily one of the most melodramatic reviewers.
Taken Up to Eleven by Saberspark in his "My Two Bits" series. He does know that there are other drinks besides red cordial, right?
Though not as much as the above, Tommy Oliver does fall into this at times, especially when asked in his first "BronyCurious Replies" video how he feels when he converts someone's "Best Pony" to Rarity
Tommy experiences this in his critique of Equestria Girls. After spending the whole review as a Harry Plinkett expy, he explodes when Sunset Shimmer declares she didn't know how to make friends. He briefly drops the persona in his rant, and there's even a blink-and-you-miss-it cameo of his original fedora-wearing OC.