When Sir Bruce speaks up, you'd better listen. That's the law, son.

(…) If the importance of good HTML isn’t well-understood by the newer breed of JavaScript developers, then it’s my job as a DOWF (Dull Old Web Fart) to explain what it means, and why it’s important.
Gather round, Fullstack JavaScript Developers – together we’ll make your apps more usable, and my blood pressure lower.brucelawson .co.uk

No, really, please read this. I might be biased, I might be a DOWF too, but there's a reason that people who have been accompanying "the web" since the early days keep ...