The anti-example's title tag in my previous post was completely uninformative. It provided no useful information for a reader to gauge whether it was safe to open the spoiler or not:
(repeated here)
A reasonable alternative to my anti-example might be:
This followup example at least tells the reader that if they haven't read chapter six they might want to avoid opening the tag.
Personally, I'm not against novel spoilers in anime threads if they're labeled such - but so many people have posted untagged novel revelations in those threads the mods apparently decided it was time for "scorched earth", so no novel revelations at all even in tags. That's fine for the subforums where a specific thread can be created to compare novel/manga to anime but it does leave the series with single threads unable to critique/compare the adaptation.