What the Deletionists seem to miss is the fact that, since there's not a space problem, then perhaps Wikipedia doesn't have to limit itself to being an encyclopedia of 'articles'. Long ago, for example, lots of people kept 'Commonplace books'. Commonplaces are used by readers, writers, students, and scholars as an aid for remembering useful concepts or facts....
Something that isn't an article can still be very useful. EG Wikipedia has little to say about "Edmond Halley Sr." [sic; his name's Edmond Humphrey Halley], a father who proved critical to his son's success, and whose mysterious death complicated his son's life in multiple ways. I spent two hours online learning how and why (w/cites), but there's no room in the WP inn for publishing that summary.
None of them miss that fact. It's the most basic, common argument people throw at their position. People who know virtually nothing about what Wikipedia is --- see: this thread --- have no trouble coming up with that argument off the top of their head.
Once again: space has nothing to do with the argument for Deletionism. It isn't an elaborate form of garbage collection and encyclopedia-compression. If you're going to argue against their position, you have to go read what it is. They're not hiding it; this may be the most elaborately, carefully documented policy on any major site on the Internet, and your argument doesn't engage with it at all.
Oh I know the arguments, and I'm more than long-familiar with the tactics and their motivations.
I'm arguing for the addition of a new branch to which serious researchers might append their (cited) notes without all the additional labor needed to create a whole 'acceptable' article. (For all I care, they could even load them down with all the usual, tired caveats.)
This stuff can just go somewhere else online that's much harder to find. No skin off my ass if WP has no alternate mechanism to add serious, skilled research. (Compare to any great library....) Any WP user who wants more will, individually, have to put in the same 2 hours I did. Great solution.
Something that isn't an article can still be very useful. EG Wikipedia has little to say about "Edmond Halley Sr." [sic; his name's Edmond Humphrey Halley], a father who proved critical to his son's success, and whose mysterious death complicated his son's life in multiple ways. I spent two hours online learning how and why (w/cites), but there's no room in the WP inn for publishing that summary.