FYI your spoiler text isn’t working for me; nor is that of anyone in the reply chain. Not sure if this is a problem with Boost, some weird federation glitch, or something else.
The format is and a title on the same line. spoiler
Content on new lines, then :::
to end it.
I’ve tried every variation and it’s not working. This is definitely the most complicated spoiler tag system I’ve seen.
They look like this
It’s an expandable full-width deal. The spoiler start tag has to be on its own line, and the same goes for the ending three commas.
MelodiousFunk has replied with a cleartext example.