P1-INTRO: An untagged public post. No exception matches, so the default format applies.
P1-BODY-1: The first body paragraph of this test post, long enough to make the excerpt and the preview behave like a real article would.
P1-BODY-2: A second paragraph with more words, so we can see where the excerpt ends and whether the body is dropped or kept.
P1-BODY-3: The last paragraph of the body.
P1C-CUSTOM-EXCERPT: This is the custom excerpt the author wrote.
P1B-INTRO: A long untagged public post. The default format is preview: followers get the excerpt and a link, not the body. P1B-BODY-1: This paragraph is filler to push the post well past the five hundred characters of an excerpt, so the preview has to stop somewhere. This
P13-NONE: Published after the essay rule changed from full to none. Should not reach the social web.
P4B-INTRO: Tagged podcast, so it goes out as a note. No marker, so the note uses the excerpt, and the feature image (uploaded to the site) is attached. P4B-BODY: More body text that only shows up in the excerpt if it fits.