I like this service and use it myself. But I do find one thing unsettling about it: I run a blog that offers email subscriptions, but also provide direct RSS feeds (with prominent links!). For reasons I don't understand, large numbers of people subscribe using kill-the-newsletter. Which makes me sad, because then they don't get real tables, can't see post-publication corrections, don't get vector graphics, etc.
I check for an RSS feed, and if it does not exist, subscribe via KTN.
It would be awesome if KTN provided an easy way to upgrade/redirect at KTN feed to an original feed, if one exists. I'm not sure how conveniently redirects would be handled by RSS clients...
Ignorance? I sub to several substacks via email, and just today (just now, from you) learned that the platform supports RSS feeds :) Off to substack I go! It’s become overwhelming.