I am so glad I could be of service in starting a s&%t storm on this forum.
I'm not sure how you come to your conclusion about the storm, but from my perspective I look for answers that are more than opinion. Easier isn't always the most accurate but I've come to understand that accuracy isn't a priority and how we get there isn't important for some folks. I definitely wasn't critiquing your project but when I saw your comment I was wondering why you drilled the hole on your drill press and not your mill. I'm a novice at machining, but this doesn't mean I don't understand taking measurements or have the knowledge to use them. I'm here to learn and I prefer instruction based on a standard not an opinion. I know we have been improving on the mouse trap for centuries, and some improvements are better and some not so good.
You can't teach the apprentice to be a good machinist if you promote shortcuts supported by **that's good enough**. I'm aware that a lot of what's presented is opinion and many times I choose to pass. I've watched three of more videos where the promotion of making the spindle square touts how inexpensive it is to make ($30 or less), and the materials list includes two dial indicators from HF. Unless you have the indicators checked against something that's tested and calibrated you could be off by .010" before you start. That's the reality of +/- .005" in manufacturing and it results in a pretty sloppy transmission.
There's a saying that goes; There's enough mystery in the world without creating more. My question to a comment, any comment, isn't saying I think you're wrong, I'm asking you to support it. Now my question to you is; How would you go about making the most accurate spindle square with the tools and equipment you have to work with?
I'm a sheetmetal worker, welder fabricator and when a customer wants a product "exactly" to a specific dimension after I ask what are the tolerances, I tell them they need to find another shop, I don't do perfect. The differences in what I see as accurate or as intended would be something mikey posted that he turned with gravers, and it doesn't have specific dimensions, it's perfect as it is. Another example would be Justin's machinist jack project. I would be more inclined as the instructor to give him 100% on his grade if he wrote a description on how the part ended up .010" short, because I would know he still learned the lesson.