I recall the term "Full Stack Web Developer" being coined by Randy Schmidt (of Nerd Merit Badges fame) back in June of 2008.

"Over the past few months, I have really started to admire what I call “Full Stack Web Developers”. A full stack web developer is someone that does design, markup, styling, behavior, and programming. Some examples of these types of developers are Jason Tremblay, Geoffrey Grosenbach & Tom Preston-Werner." --Randy Schmidt

The original link is dead, but it's still available via the Wayback Machine. [^0]

I still get a kick seeing people trying to describe what a full stack web developer is and almost every single instance neglects to reference Randy's original post. Let that sink in for a moment and consider the countless job descriptions you've seen in the last fourteen years.

[^0]: https://web.archive.org/web/20110210194715/http://forge38.co...

^ bingo. This is exactly how it's framed in my mind. Mostly it's the same work (In concept. Though it's infinitely more complicated now), just the verbage has changed.

Webmaster is still the best title.