But there’s a variety of lengthy posts, rather than just one type.
Bonkers. Characterised by no paragraphs, weird use of “which”, determination to use “n” not “and” despite also using 3,000 words to say nothing, wild backstory, irate OP who gets pissed off when everyone focuses on the backstory about prostitutes, nine ex-wives and stealing when they’re just being lighthearted about pizza, honest.
Man whose wife won’t sleep with him seeking reasons she should sleep with him, in the hopes that by presenting data from Mumsnet to her, she will sleep with him.
”My DH is terrible and lazy and awful to me and tight with money and does nothing round the house and verges on abusive but he’s a great dad! I offer no evidence for his greatness, I’m just saying!”
Lighthearted by someone who isn’t funny and covers this fact with words.
Goady plop and run.
Lengthy, pretending to be confused about the Middle East but really wanting to stir up trouble.
Elaborate trolling from PBP.
On the whole I don’t think journalists do the lengthy ones: they do drive-by “wow, sex post-baby is tricky, what are your experiences?” without sharing anything.