Not sure which conversation you mean, @eaplmx@twtxt.net (it’s already quite late here), but here’s my take: I think twtxt it’s not heavy enough. For a real feed format I would like to have a clear separation between titles and content. And more options for the content. Plaintext and HTML at least. Twtxt is plaintext, but lots of folks (me included) actually use markdown in their yarns. However, the actual format being used is not advertised anywhere. To make things worse, I actually prefer reStructuredText over markdown. For podcasts some enclosure-like thing would be nice as well. Twtxt being line based also really limits structuring of longer content by hand. Just can’t produce a nice source file.
On the other hand, RSS and Atom being XML are way too heavy for my taste. And then there’s JSON feed. It’s been a while since I skimmed over it, can’t remember the details, but I wasn’t sold on this one either. I also never encountered any JSON feed in the wild. So I’m still on my quest to find an optimal feed format.