That got me thinking that there should be a subreddit for old internet stuff. And, of course, there is: [1], though sadly this is almost all memes from the early web days, not pre-web. There's also [2] and [3], but they mostly seem to focus on current BBS and Usenet needs, not on the BBS' and Usenet of the pre-web days.
It's a shame.
alt.wesley.crusher.die.die.die will never be forgotten.