> The idea of using special client to connect a server is somewhat alien to the generation that equates the Internet with the Web.
I think the problem wouldn't so much be needing a special client (app) to access a server (walled garden) as having to discover the existence of USENET, select a client, set up the client to point to their ISP's NNTP server (do ISPs even have NNTP servers these days?) or a premium or free 3rd party server, and then find an appropriate newsgroup(s) to follow.
Jan Willem (of Vlambeer), who hates the phrase "game feel", talks about it through a simple iterative process of improving game mechanics. See: https://www.youtube.com/watch?v=AJdEqssNZ-U