I would counter your three assertions with a few thoughts:

- there are now literally thousands of ways to host personal websites, even if we’re not in the LiveJournal age anymore

- there are also several services out there to host comments (many of which I tried over the years before I realized the absence of comments was a feature, not a bug)

- RSS is still a thing. Very much so. My site publishes a full RSS feed, and I have at least as many individual RSS GET requests as for the rest of my site, bar the homepage.