User:Headquarter8302/guestbook

I finally catched up on the guestbook craze. Sign using four tildes  on each new line
 * 1) Hello world —  Headquarter c  10:24, 23 June 2023 (UTC)
 * 2) Hi Markus!  - Eterhox  | Message • Talk  14:25, 28 June 2023 (UTC)