I was trying to simulate a Guestbook, by using the functionality of "Comments".
This wasn't satisfying, because the page/comment kept displaying:
- the permalink
- Teaser in the Comment
- Menu choices, i.e. when logged out "reply" kept functional.
And this even though the functionality - the check-box - where possible in the content page was disabled (=unchecked).
This made me delve in the content types, and made define a content type "Guestbook Page".
This was nothing more than a basic page, with the Comment defined as being in plain text.
Still no difference; everything was displayed.
Looking at the tabs, visible after menu-choices "Home » Administration » Structure", choosing "Content types" and and edit-ing the content-type, I saw there was a difference in the tabs "Manage Display" and "Comment Display".
The difference was in the options under "Custom Display Settings". There were options for "Manage Display", but none for "Comment Display". Where I could choose to have the teaser displayed or not for the body, this wasn't possible for the comment. This surprised me, because I had read that a page and comment were in fact more or less the same thing.