but it definitely would not define PKMS vs journal
Not my intention either. To give you an idea I will index in my pkms entries from my journal where I wrote my thoughts about such or such book I'm reading, or a movie or some event, or whatever. But only as far as I think that entry may one day have interest outside of them being my (personal) thoughts on whatever. So, most journal entries, because of the way I write it, don't enter my pkms. I value them almost equally, though.
Leur donne pas ce genre d'idées :p