Originally, Lewis just referred to Dr. Linksano as "the Dr. Insano from another universe", but fans really latched onto the name "Linksano", so he ran with it. Likewise, "Mechakara" started off as a Fan Nickname before being officially adopted by Linkara.
Lewis's commentary on his Power Rangers #1 review reveals that he did not originally plan to use the gun acquired from Cable to defeat Mechakara, and that he put it in specifically to fulfill the fans' expectations of it having been a Chekhov's Gun.
Big Name Fan: In comic book and Power Rangers fandom. He is a member of Power Force, an exclusive group created by Saban Brands, comprised of Power Rangers's biggest fans, and receive exclusive benefits and first looks.
Creator Backlash: Linkara is embarrassed by the self-published novels he wrote in high school. Whenever they're brought up, he ends up asking that people don't track down the first two and only look for the third, which he is the least embarrassed by.
Dawson Casting: Some commenters complained about the casting of the girl playing Margaret (the Magic Gun) in Psychoman #1 as an example of this, pointing out that when her backstory had been given in the Silent Hill reviews she had been said to be 13 years old when she died. Linkara replied the actress was actually 14, and apparently Younger Than They Look.
Hey, It's That Guy!: Mightily Murdered Power Ringers was written by Eisner-nominated comics writer Nat Gertler (who puts in a Cameo) and drawn by Sinfest creator Tatsuya Ishida. Linkara himself is visibly shocked when he learns this, and the credits remark that it's just proof that nobody produces good stuff 100% of the time.
An even more insane example: In his "New Guardians #1" review, we have Snowflame appear, being played by Lewis' real-life friend Will Wolfgram. ...aka: the guy who played Lord Vyce.
A drunken Linkara ranted about Booster Gold's Character Derailment in JLA: Act of God to Dan Jurgens in the stinger of the "Sir Charles Barkley and the Referee Murders" review.
For the 200th review, flipping SF Debris had a cameo.
Hey, It's That Sound!: He uses sound effects from the Descent games to good effect in the story arcs, and especially during the climactic battles. Many of them match events in the scenes that would trigger them in the games.
Then, there are his self-published novels, which, while not nearly as bad as above examples, still show that Linkara has come far as a writer since he wrote them (on the bright side, they contain what may well be the origin of his nickname).
He admitted during Magfest 9 that the early chapters of Lightbringer were written when he was "young and opinionated", saying he'd even given up on editing them.
Many of the comics he reviews are the Old Shame of good writers, or at least are bad writing by good authors. Especially Fabian Nicieza. Nat Gertler actually appeared on AT4W to admit this of Mightily Murdered Power Ringers.
In the commentary of the Bimbos BC movie, Brad Jones revealed that the director was actually a good friend of his. When Brad went to the guy to let him know that he and Linkara were going to review the movie, said friend's response was reportedly, "Good Lord, why would you want to watch that?" The two go on to point out that he was about 16 when he filmed it.
One of Us: During The Situation, Linkara urged many on his Twitter to help support TV Tropes by buying the merch. During his "Top 15 Screw Ups" video, while addressing his mis-pronunciations he put up the discussion of just that from this page's Headscratchers page.
Possessive Author: He wouldn't let Mechakara be a character in any of the Channel Awesome movies until To Boldly Flee, due to the fact that Mechakara is a serious character who would sooner snap everyone's necks than crack a joke. Doug respected this and wrote him as a Knight of Cerebus.
Real-Life Relative: His parents, brother, and girlfriend have appeared on the show numerous times.
Throw It In: Linkara's commentary for review of the Power Rangers comic notes that in his morphing sequence his glasses reappear and notes that it is excusable by the fact that that kind of thing happens in the original.
According to his commentary he had planned for The Entity to appear as multiple 90s Kids speaking over each over. He also states that he originally planned to fight The Entity with a Quasar Saber, but decided on Talking the Monster to Death, realizing that after all the build he had given it that Linkara killing it in a straight up fight would make him too much of a Mary Sue.
Another scrapped idea for the The Entity finale was to reveal that The Entity actually wanted to become an Elder God and would journey to the city of R'lyeh, only for it to discover all the Elder Gods died of boredom long ago.
The original plan for the "Linkara Lost" story arc would have had fans submit their own AT4W episodes, but it was instead replaced with the supporting characters doing the episodes.