I've seen some posts using bold text, italics and spoilers but as far as I know there's no info on how it's done. Does anyone know?

quote this message and youll see
quote this message and youll see

Thank you! Do you know any others?

Yeah theres also one to prevent spoilers, just click on the black square

Insert spoiler here

You can even combine them for moar power

Thank you both!

Yeah dawg, but how do you do strikeouts?

I googled that for a while, and consulted other sites built on the same framework; as far as I can tell, it isn't possible.

Like this

Yeah' I still don't get it

Sigh*

[s]This is a test. It is only a test[/s]

This is a test. It is only a test

Okay, neither strikethrough nor underscore are recognized here. Now we know.