Finally I believe that HPMOR is a much better recruitment tool than the sequences. If someone starts reading HPMOR they get hooked on it and spend a lot of time being exposed to our memes. Getting hooked at dense material like the sequences is harder.

The converse happened to me! (But I happened to find the sequences at a time when I was already like “yay Bayesian probability theory, boo cognitive biases”, and I knew hardly anything about canon HP beyond having watched the first film when it came out and fallen asleep while trying to watch the last one, so I'm not a representative sample of the population.)