Well, it didn't take me long to succumb to the power of the CSS dark side! ;-)
I had a few people comment about my website being "broken" - and my semi-auto reply of "going back to basics" - but this hasn't bothered me much, it's quite interesting to start a discussion around the idea.
However, I do admit that there are enhancements to be had with applying basic stylings. So I've started a minimal experiment, to explore those enhancements.
Initially I'll apply web-safe fonts and reasonable viewports - I've already had Google scold me for excessive viewport width on mobile devices! The strange part to that is I've tested my blog on phones and tablets, which it renders fine. Still worth exploring the options.
If you have any feedback, I am open to suggestions.