Here's the RSS for the blog of the aboutfeeds.com maintainer (genmon here on HN—including here in the comments to this submission): <https://interconnected.org/home/feed>
If you wanted an informal list of people making use of this pretty-feed.xsl specifically, it would be possible to solicit that sort of thing through GitHub and see if others come out of the woodwork to identify themselves.
If you wanted an informal list of people making use of this pretty-feed.xsl specifically, it would be possible to solicit that sort of thing through GitHub and see if others come out of the woodwork to identify themselves.