Well, I'm not abandoning it just yet. So far I've got probably 1100-1200 more screencaps that are suitable for upload here, plus I'm planning to mirror most of the other individual thread archivers' collections here because most of them are someone's side project and it's just safer to have the content distributed, plus I'm planning shortly to put up a static version of yswiki here because it's been down for several months now. (It's taken some effort to edit into usable form because of all the spam/vandalism included in it, he didn't remove anything from the database before exporting - I'm just culling down to the final clean version of each page, and it'll be in plain HTML.) This latter, as you know, includes Jkid's supposedly complete restoration of wikichan, among other interesting things like the English-translated history of Futaba. And then, I dunno, I got some more stuff lying around, like all the original /b/-sides complete with the pictures (I think bibanon just has the text), and I've been thinking of trying to make a more thorough board timeline of my own, and I might be able to dredge up something else, who knows.
Thanks for your comment, anon. I'm happy that people have found this collection useful, even if it is perpetually incomplete.