I’ve been going through the blog and trying to rationalise things like categories and tags, and fix broken links (the result of websites elsewhere vanishing / blog posts on other sites being moved, etc.).
While I was predominantly using the WordPress “quick edit” tool, WP still took it upon itself to send out random notifications via RSS denoting old articles as being new posts. If you were one of the people who received such false updates, my sincere apologies.
Anyway, the core work is done: hopefully there won’t be any more spurious messages, and with the overall rationalisation, things should now be easier to search via both categories and tags.