Remember Guestbooks? you'd visit a website, and volunteer your name and which country you were from and leave comments. And it wouldn't be a cesspool of spam and porn and XSS attacks? How quaint!
Oh gosh, yes! And reading the guestbook was always so fun. An elderly friend of mine passed away in 2018, and in doing a (google) search of him, I found guestbooks he'd signed 20 years ago.