I don't expect the "random user" or "random post" features to be perfect, or, umm, particularly anything; the whole "HERE IS SOME RANDOM CONTENT" feature is a novelty of no practical use whatsoever, and I can't imagine getting upset because it provided unwanted content (blank journal, ugly/offensive stuff, deleted journal, whatever).

I like the random user/random post feature; I've had good conversations because of it, and occasionally made a friend that way. But it's not like anyone (sane) could say, "Hey! This isn't working, and my DW experience is ruined because of that!" It's too weird to matter if it's non-glitchy--but I didn't know if it grabbed users who've posted locked things; it hadn't occurred that it might grab users who posted things that were later locked or deleted.

Short version: Thanks for explanation! My understanding of DW has been enhanced! I continue to be nondismayed at however the randomizer works, or does not work!

I wish I had nice suggestions for how to measure "all [username] recent activity;" it hadn't occurred to me that journal posts, comm posts & comments were stored in such different ways that there's no simple way to count & compare them.