mi zmadu do lo ni barda (I exceed you in property of being big) => mi poi zilkarbi do cu barda (I compared to you is big).
ka, not ni. ni is quantity, ka is property.
Although this is completely unrelated to the thread -- then again so is your reply, too -- the abstraction suggestions in the gimste are not prescriptive.
I know this. I'm a big proponent of same.
(You can dig around the archives to see that Lojbab himself has said this.)
Some of us have adopted a system of abstractions that is more self-consistent, and indeed, that system puts a quantity abstractor in zmadu3. What gleki said isn't wrong; it simply doesn't conform to your style of Lojban.
Actually, no. It is wrong, because he is translating ni as property. "(I exceed you in property of being big)". I wasn't saying he needed to put a property there, I was saying that ni is /not/ a property., it's a quantity.