I use
<details>
often in GitHub prose to include but collapse long technical details like logs or nonessential code examples. I'd like to do the same on SO. For example, in
this answer I have a 282-line example of JSON data. As a workaround, I put it in gist and linked to it, but I'd rather follow the principle of including data in the answer itself, without destroying its readability. —
Jacktose 13 secs ago