Better spoilers

The site I started on, Puzzling, has a lot of spoilers. Many (if not most) answers have a significant amount of content in spoilers, and many questions have a hint (or hints) in spoilers. That's the site culture. It comes with how we've tried to force the SE Q&A model to fit a puzzle-solving site.

Given that, it would be wonderful for spoilers to be improved. There are two big things:

• Make spoilers accessible to keyboard-only users
• Better support for Markdown in spoilers: tables, but also everything else (since most people aren't going to discover the hack of using HTML instead of Markdown).

All that content that Puzzling has in spoilers could benefit from better, easier formatting; people are reduced to using funky hacks or just giving up on proper formatting altogether. The times that I've had to help someone figure out how to spoiler code, or explain that tables don't work, or fix up a post with an apologetic "I'm new and can't figure out the spoiler formatting" etc. are numerous. And making spoilers more accessible seems like a no-brainer (given a magic wand - I'm sure it's more complicated behind-the-scenes).

For something that combines both of these bullet points, take my crusade for Markdown table conversion. I have an SEDE query to find posts which have MathJax tables, so that I can edit them into Markdown ones to improve accessibility. But... a lot of the tables I find are inside spoilers, and I can't fix those. TablesMarkdown tables simply don't work in spoilers, and even if they did, my target audience of vision-impaired-folks wouldn't be able to get to them anyways (assuming they're keyboard-only).

So given a magic wand, I would give my community better spoilers.