Some examples would be Michael Nielsen, Gwern Branwen, Andy Matuschak and u/SigmaX (reddit - not sure his real name)
* http://augmentingcognition.com/ltm.html * https://gwern.net/spaced-repetition * https://andymatuschak.org/prompts/ * https://imgur.com/a/anki-examples-math-engineering-eACA7QM * https://imgur.com/a/anki-practice-cards-language-music-mathe...
Sure, we all need to study and learn things in life here or there, but the flashcardification of the process makes it boring and painful.
From my own personal experience trying it, I find the process to be too far removed from the practice of accomplishing what you are setting out to learn to do. An analogy might be like memorizing a recipe by using Anki cards and not physically cooking it versus doing cooking it a bunch of times without deliberately trying to memorize the recipe. For me, the latter is far more effective because you have your 6 senses of mnemonics to memorize what you are doing. I may not remember that I need 2 cups of flour, but I remember that I scooped my purple flour scoop twice and that the white contents felt powdery like flour and grainy like sugar. Even if I forgot the recipe my body would have smelled, seen, touched, weighed the material and I have all these physical clues to work with.
Learning by doing, experiencing, immersing is more of a "repetition that you don't even know you're doing" while Anki/SRS has the feeling of a chore and an obligation.