I wasn't even aware of that guest link until very early this morning, when the designer of the new theme told me about it after a session of tinkering to rival
the one that put the squiggle into anothersquiggleforum.
Compare with
the desktop version, which link I’m providing in case you've clicked up yonder and want to come back, as the new one kind of grabs you and doesn’t let go without a hard refresh.
Some of the differences are probably so small you’d need to have them pointed out so you could say “Oh, right,” then roll your eyes properly. When weighing my personal aesthetics against vastly* increased usability, it’s a no brainer.
It actually turns out a recent fix to allow for scalable pics made posts somewhat phone friendly, without my even knowing about it. So the old site is indeed now legible on a small screen – the posts at least. The index pages and menus, not so much.
* About that vastly. Turns out not so much as regards links, at least using Safari on an iPhone; links are harder to read against that background, as they aren't underlined... will fix, if possible.