That’s not particularly helpful however…
Don’t be so pedantic. Surely you’ve dealt with .nix systems enough to know your OS choice’s equivalent command. Unlike computers humans are capable of and expected to be able understand instructions even when somewhat poorly worded, which this wasn’t.
Things will get better as more people get used to how this particular system works. As you can see from this post quoting is possible, but it isn’t done the same way - it is intuitive since I stumbled into it by accident. You highlight the text you want to quote and a “quote in reply” button will appear - just click it.
Anyway what does the Discourse software have to do with the main topic?