Comment How about using what other sites use (Score 1) 34
Crowdflare, CAPTCHAs, ... ?
Then when you reread the text, multiple parts of your brain are likely lighting up. Then you go to the discussion section (are those are still a thing?), and as long as the notes don't look completely alien when you reread them, you can use that time to consolidate the concepts.
Our brain (co-)evolved in our physical environment, and abstracting away from the physical elements of interaction can cause us to lose things without realizing it. Just a suspicion.
Disclaimer: "These opinions are my own, though for a small fee they be yours too." -- Dave Haynie