Would it be possible to have markdown drop-down lists in MO? I think that hiding lengthy examples, components of long proofs, edited out text etc., inside such menus could add readability.

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    $\begingroup$ These feature requests aren't the same, but they seem to be directed towards possibility to hide some part of text until needed: Could we please have a clickable arrow to expand hidden content? and Collapsible Sections/Spoilers. $\endgroup$ Dec 26, 2022 at 13:31
  • $\begingroup$ @MartinSleziak Yes, it seems that what is mentioned there could exactly be done with drop-down menus. $\endgroup$ Dec 26, 2022 at 14:19
  • $\begingroup$ I remember an old MO question where answers to some quiz questions where hidden by using rot12 cypher, for lack of a hidden list option. $\endgroup$ Dec 26, 2022 at 14:19
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    $\begingroup$ @YaakovBaruch, the ROT12 cipher has the advantage that you need only use it again 12 times to decode. 🤪 $\endgroup$
    – LSpice
    Dec 30, 2022 at 21:10


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