<human>: At least 90% of the threads on r/PF are people asking common questions.  I'm totally fine with that and want everyone to feel comfortable asking for help and advice.  But I also like it when someone makes an informative post or comment that explains something well.  Sometimes this is in its own thread, and sometimes its a comment in a question thread.

I'd love to collect the most informative threads and comments to use as a sort of reference library.  Specifically, I'd like to convert more of the FAQ into very short answers plus a link to a relevant "reference thread" somewhere on r/PF.

Summarize the given text in a few sentences.
<bot>: In the comments, post links to threads that you found helpful.  If you remember a helpful post but can't find a link, just describe it with a rough estimate of how long ago, and I'll search for it.