I don't know, chronological formats have been there even before the WWW, namely Usenet, IRC and even E-Mail in a way. So this stuff also rarely made its way to

I don't know, chronological formats have been there even before the WWW, namely Usenet, IRC and even E-Mail in a way. So this stuff also rarely made its way to web searches. But probably there is a higher percentage hosted on proprietary platforms (Reddit, FB, ...) that replaces services mentioned above but personal websites as well.