@fcy That is correct, I like to keep some level of distinction between my thoughts and the thoughts of others. I also do this by distinguishing between literature notes and evergreen notes directly in the note title, which makes it easy when scanning to tell which thoughts belong to others and which are mine. (“mine” often means a note with a set of literature notes capturing others’ thoughts and letting them argue or agree with each other while I find themes, patterns, etc from their discussion)
I don’t run everything through that source-to-literature process – the heuristics I use to make the decision include the size/length of the material and the number of core principles that I can see from a cursory read. I’ve cited a single passage from a book in an evergreen note with no corresponding source/lit note, and I’ve run a 3 paragraph online comment through this process because it was written by a professor and contained at least 3 valuable concepts each of which I converted into literature notes. Since the literature notes each refer back to the source note, which in turn links to the original source material (in the case of the comment I just copied it into the source note as well as linked to it, in case it is deleted one day) I have traceability.
It’s also actually much simpler in the logistics than it may sound. I’m experimenting with Alfred workflows and have one that lets me easily create the source note from anywhere on my Mac, so I can process it immediately or just let it sit for review at some undetermined future date.
@techflo I am absolutely overwhelmed by the content available! 
But I’ve been burned so badly by the collector’s fallacy before that I try to be much more cautious in what I allow in to consume my time.
Currently I have 70 source notes sitting there in various stages of processing, some mostly processed and many others not touched yet. I’ll get to them when they seem important enough and I have time. Also quite a few of those were captured when I was earlier in my Obsidian + Zettelkasten journey, and I could probably toss out 2-3 dozen now as not actually worth my time. So in that sense I do “collect” a bit but I’m not collecting the content and hoping for connections, rather I “collect” a source that seems interesting and let it sit there, sort of like in an inbox, and occasionally I look over the list and decide to read something interesting. Or I’ll decide it is no longer interesting and just delete the entire folder without processing it at all.
One source that is mostly done and has a lot of material in its 250 pages has 37 literature notes so far (which feels excessive and I may pare it down a bit), another that is less than half done (but is 900 pages of dense material that I need to study for a major exam) has 56 literature notes. (which doesn’t feel excessive, as a prior exam I took in the same field had me generate 5000 flashcards, with a lot of duplication of course)
As I process them some of those may be combined and condensed.