I mostly agree. But really RSS and email have basically the same functionality. The have date, time, content. The main difference is that RSS has better markup for URL "attachments" as well as an alternate URL. The "what if the email server is overloaded" can be equivalently replaces with "What if the RSS feed is down". Spam is an issue with email, the nice thing about RSS is that you know you want the feed, so spam…
I've always wondered why emails aren't used as back-bone for more services. In many aspects, facebook is just a mailing list with ads and a fancy front-end. And in some ways, visiting a web page is just emailing the server and receiving the web page in response. And in some ways, the latter would be perfect to keep an archive of important stuff
https://stallman.org/stallman-computing.html
> I generally do not connect to web sites from my own machine, aside from a few sites I have some special relationship with. I usually fetch web pages from other sites by sending mail to a program (see https://git.savannah.gnu.org/git/womb/hacks.git) that fetches them, much like wget, and then mails them back to me. Then I look at them using a web browser, unless it is easy to see the text in the HTML page directly. I usually try lynx first, then a graphical browser if the page needs it (using konqueror, which won't fetch from other sites in such a situation).
> perfect to keep an archive of important stuff
Most stuff is not important.