No for me, since I am on Hashnode every day anyway and consume the recent feeds instead of "for you"... So, in general, I don't really miss anything interesting imo.
For others, though, a clever algorithm might be able to dig up some gems. I love This Week In Rust , because it contains interesting stuff to read, and I imagine having a weekly opt-in newsletter could give some of us the same value 🙂 If done right, you could even place targeted ads and job postings... just an idea, though.
I also like j's idea of personalizing the digest, in order to mix the topics up and get fresh content. Ideally, try to skip posts a user has read or seen in a feed - then I might even give it a try!