I'm building a completely static, hand-coded webcomic website, which means my RSS feed will be updated by hand also. As "old" entries aren't really a concern due to the nature of the site, is there a reason I shouldn't just continuously reuse and update a single item in the feed, or should I keep them like a typical (machine-generated) feed?
Hello and welcome to Stackoverflow :)
I'd say that the main benefit, if I understood your context correctly, is archiving and posterity ?
What if a visitor wants to read your work from the beginning?
I'm sure you can easily automate the process somehow