Yep. The genuinely useful stuff is never coming from Medium/Twitter personalities. Instead I often find it on obscure Blogspot sites with a few posts per year,

Yep. The genuinely useful stuff is never coming from Medium/Twitter personalities. Instead I often find it on obscure Blogspot sites with a few posts per year, with archives going back to 2006 or so. That's where you find content from actual good engineers. Leave the Twitter e-celeb drama to the plebs, and Medium to the CV-filler fluff.