This is how it is given on Yak's page, but it might not work for reply comments.
[list=1]
[*]list item 1
[*]list item 2
[/list]

http://www.furaffinity.net/journals/yak/

But those features don't look like they're implemented yet (five years later)

Yeah: doesn't look like that works, either.

Looks like we have to do lists the old-fashioned way,
☻ by hand
☻ unformatted.

Of course, it looks like the way it was being implemented, it wouldn't be any easier, since it's only one level deep and there doesn't seem to be an obvious way to select between numbers and different styles of bullets. Frankly, I just find it amusingly annoying that the same BBcode formatting (italics, bold etc) isn't available for story uploads that is available for general journal entries and picture descriptions. That's just incomprehensible.

Yeah.

For story uploads, SoFurry has the best system of all.

If more people used it, I'd probably be there more often.