Have you set up a bot that copy-pastes this every time 'PDF' is a substring of a post's title? Seriously, stop spamming.

> and spaced repetition via Anki.

Now that is a potentially killer feature. Anki is great once you get information in, but in my mind it always laggnd the proprietary one... Supermemo?.. in terms of getting stuff into cards and your brain in the first place.

Man, this is so annoying.

He's not spamming, he made it himself, and I could really see it helping people.

Then why would they hijack the top comment about widespread PDF support instead of making a separate top-level post when the whole submission is about PDF?

In what way? It seems interesting to me.

Yes, it's neat and interesting, but burtonator posts basically the same comment in almost every thread about PDFs, academic papers, etc.