A lot of websites dump the entire feed — that’s nice. Ideally for bandwidth efficiency, combine multiple delivery strategies.

1. A partial content feed (Atom preferred) limited to the last 3/5/10 posts for quick queries.

2. A full content RSS feed of a similar limit for fresh content.

3. A hidden/unlisted feed for dumping all content (mirror).

Alternatively, just implement atom’s collection partial lists for feed pagination. If your post bandwidth (size/frequency) is low, then pretend you didn’t see this — be lazy and optimize later.

Here’s a great article that implements reading webmentions natively in hugo. There’s always a soul out there who has tried what you’re thinking about.

Web mentions and reply by email? The first is easy thanks to webmention.io, but the second is very involved and requires a public email inbox setup.

The GUID is an interesting element in the RSS specification — yeah another post about RSS. You could hash the content of a post and commit to the idea that it shouldn’t change.

If a post changes, then the GUID would provide a trail of edits, with the drawback of possibly resurfacing an old post. This article from 15 years ago explores what feed readers did at the time when given a link and/or guid.