Massive thanks to @mikehaynes for this help on getting my Archive page tidied up. The archive now only lists my main articles and removes all the other various categories and post types. If you ever want to look these up they are still availalbe via the sub menus at the top of the archive page.
Now, my ‘microblog’ posts live only on micro.blog, which feels like the right home for them. I can now keep The Dent as a real blog on the face of it, but also the machine that drives my social photo sharing and micro-blogging, whilst keeping them apart.
👍 to @manton for building such an incredibly flexible platform.