I upload a lot of 3rd party reports, like Gartner reports or even academic journal articles. Sometimes I just want to upload it and publish it as an insight to share, but often i prefer to have them as notes so i can highlight key insights and takeaways from the report or allow folks to comment on certain aspects of the PDF. I can't do both though cause its duplicative/time consuming/confusing for viewers.
Its especially troublesome for uploading my own legacy research reports as PDFs -> insights, as my viewers can't comment on specific areas of the PDF. I initially started uploading those reports as notes, but it got in the way of using feeds as I'd have to pull in unpublished insights into the feeds if i wanted to include these notes in there.