alt Hacker NewsI am not a native english speaker so perhaps I misunderstood what headcanon meant. But I took it to mean as expanded upon by GP, that you were a well meaning but misguided beginner and have some ideas about what works for language learners that is not expressed by language learners experts.
My personal headcanon to verb conjugation is that you know them when you know them, the shorter the explanation the better, spend more time with examples then explanations, and maybe just learn one or two forms at a time. And when in trouble, find a conjugation chart (preferably at the back of your textbook; after the glossary). My main criticism of Genki was that they should have taught the short form first (before the -masu form; 食べない and 飲んだ before 食べません and 飲みました etc.).
> have some ideas about what works for language learners that is not expressed by language learners experts.
This seems like a culture clash. In programming blogging, it is completely fine to write blog posts about the mental model that works for you (as long as it doesn't contradict evidence) and then maybe it works for somebody else. The idea that I need to first get an approval from a commission of Serious Teachers That Verified Which Approaches Work Well For Learners Statistically is laughable to me.
I write for myself and for people like me, period. I do not claim this is useful to anyone but a tiny group. This tiny group is who it's written for. I explicitly say in the article that I struggled and this is what got me unstuck. If it isn't helpful, just close the tab.