It actually does do an embeddings search, but only if you enter a search term in addition to a nym. For nyms, it just filters for items created by that nym.
How much is embedded on the search side and the content side? The entire body of search text, minus the nym, and the entire post or comment? Or something else?
I think the search query embedding (minus nyms and other filters) is compared to the entire post text, as well as the post title. For posts, the content body doesn't include all the comments. For comments, it's just compared to the comment text (not including subcomments)
It's not strictly ordered by time anymore which is good in some circumstances but bad in others. We have a ticket open for it. I'll add this example to it. Thank you