In question and answer posts there is a spoiler alert feature:
To hide a certain piece of text and have it only be visible when a user clicks it, use the blockquote syntax with an additional exclamation point
Below the question What is the maximum force a deep space spacecraft experiences after launch? there is an extended conversation in comments about detailed plot aspects in Larry Niven's Known Space books that focus on details you should not be told if you would like to actually enjoy these stories.
However, to my knowledge there is no way to implement the hide/reveal spoiler tool in comments, so there they sit in plain sight.
How do people feel about story-spoiling of Niven's wonderful stories in comments here in Space Exploration SE? Should we at least try to refrain from doing so?