I think kaysert is a different person from sqwarrel?
EEVblog user Awesome14 (now banned) was selling under eBay user kaysert (Tom Kayser) but that eBay account is now inactive. They sold under the name "CALIBRATORY", and referenced their father as being the engineering mastermind behind the device. Calibratory, LLC was mentioned by them, but a Google search shows no other reference to that business other than on EEVblog. They were active here 2015-2017 with 192 posts.
EEVblog user Majorassburn (also now banned) was selling under eBay user SQWARREL now renamed to dmmsure (as per the OP's auction link). They started their own thread about their "affordable references" with a link to their eBay listing. They were active here 2023-2024 with 95 posts. They were compared to Awesome14/kaysert and responded with "OH LORD NOOOOO!!!! I'm NOT THAT GUY!!!!".
Both assembled their super-duper references on protoboard, and defended their construction techniques. Photos of the Calibratory product was shown to have particularly terrible soldering, and it used a small piece of copper foil as their magic heat pipe for "temperature compensation".
Awesome14 started off posting in a defensive in accusatory manner after some discussion started referring to their eBay listing, and they got more and more unpleasant over time.
Majorassburn started off posting in a friendly manner, and accepted feedback initially, but they quickly took their user name to heart and became pretty rude. Mind you, other posters here were also not all that nice.
I don't think they are the same person but just have similar delusions about their products, with Awesome14 being more extreme. Maybe they settled down after a few years...
I hate the proliferation of AI, but for funsies I thought a quick analysis of their writing style was worth a try, but nothing serious should be read into the response.
Google AI gave me the following summary based on a couple of sample posts:
Based on a stylometric comparison of the two samples, there is a very high probability that Awesome14 and Majorassburn are the exact same person.
While the second sample is shorter, it contains matching psychological patterns, identical syntactic structures, and highly specific vocabulary choices that go far beyond a coincidence.
And if you care, this is the additional analysis:
Here is the breakdown of why these two writing styles match so closely:
- 1. Mirror-Image Psychological Themes
- The "Misunderstood Genius" vs. Cruel Critics: Both profiles portray themselves as creators of "low-cost devices" who are being unfairly bullied by a toxic community.
- Awesome14: Mentions an "endless litany of being bashed for my capabilities" and "the bitterness of others."
- Majorassburn: Mentions "perpetual fault-finding," "hyper-critical posts," and critics trying to "throw a wet blanket" on their work.
- The Obssession with "Arrogance": Interestingly, both accounts weaponise the word "arrogant"—a classic psychological projection trait. Awesome14 complains that an instructor called him "arrogant," while Majorassburn immediately attacks an opponent's "arrogant, self-serving" posts.
- Unsolicited Declarations of Personal Integrity: Both feel a desperate need to explicitly state how honest and noble they are.
- Awesome14: "Few people understand the desire to do good for the sake of itself... I think honest would be the proper word."
- Majorassburn: Buyers rely on "my integrity... That is sacrosanct with me."
- 2. Identical Linguistic and Grammatical Quirks
- Overuse of the Passive Voice for Self-Defense: Both users shift into highly formal, passive corporate-speak when trying to absolve themselves of blame regarding their products.
- Awesome14: "To say that these design features preclude manufacture of the device is simply arrogance!"
- Majorassburn: "Marketing a viable product in the meantime should not be prohibited..."
- "Concomitant" and "Implicit" (Sophisticated Visual Clues): Both writers try to elevate their argument by dropping high-level vocabulary into otherwise emotional rants. Awesome14 uses phrases like "implicit claim" and "right reason," matching the precise, slightly archaic flavor of Majorassburn’s use of "concomitant obligation" and "intrinsic."
- The Parenthetical Aside Strategy: Both users rely heavily on using brackets or hyphens to insert defensive qualifiers mid-sentence:
- Awesome14: "...encourage a positive—or at least neutral—stance..."
- Majorassburn: "...offer a low cost alternative (albeit with limitations) to that..."
- 3. Exact Product Scenarios
The context confirms the stylistic match. Both users are defending a controversial, low-cost electronics device they manufactured and sold, arguing that they have no obligation to make it user-serviceable or to educate the buyer, because the low price justifies the design constraints.
- Conclusion
This is not just a case of two engineers arguing. The specific rhythm of the sentences, the hyper-defensive posture, the switch from colloquial anger ("Ya know" / "step there's going to be a turd") to high-level vocabulary, and the distinct victim complex are identical. They are almost certainly the same individual.
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