Once in a week would be fine for me. However I may not look into that very actively as I am very busy on HashNode Itself :-)
I would suggest, we evaluate the persona requesting for it. If that are in good number, we must go for it. I am happy with wandering myself in HashNode now and enjoying it so far!
[Edit] - Forgot to mention: Many of my Friends and Colleagues and big fan of the Medium's digest based on their interest and crawl.