alt Hacker Newsi've always used double dashes -- because i once i setup a osx shortcut to change those into em-dashes, but i never bother to setup this again in other computers.
so now, i just use double dashes for everything.
(shit, i wonder when llms will start doing this instead of normal em)
Then we start using triple dashes to throw them off and then when they catch onto that we can reclaim em dashes!