If you do a
**bold** with backticks around it, it shows the stars, but if you don't use them, you'll just get bold. And it's the same with most other styling punctuation marks.
However it does not work with `---strike---` in chat, and instead of getting it like it does here, I get this:
Though I wrote it with the backticks. And it gets stranger, if I edit the message it will sometimes become
---Strike--- rather than ---Strike---, and then work for most of the time (after it has stopped being green, before then it does the line through even if it's not meant to) until some seemingly random time when it stops working again.