@rek2 Thanks for your link. The most interesting part of this article is for me on the picture. User d1337 at sdf.org and his attempt to describe what life was like in the 90's. I'm also looking for people who were using the net back then, especially #Gopher.
You can also look at collected answers on my question:
A newer server operated by the Mastodon gGmbH non-profit