I think he was trying to point out those aren't UX issues, they're features you wish existed
he's not arguing the craigslist UX is broken just that there are lots of areas where it could be improved.
> they're features you wish existed
the netflix UX is not broken. it just hasn't changed. yea, we clearly want more features. and netflix should too - getting to the top and then stagnating is exactly what their predecessor did..
just because you're happy with the way things are, doesn't mean it cannot possibly improve.
They could have a seller/buyer rating system cough eBay.
I mean, you're not even trying...