Earlier quoted context omitted.
I don't know where you were in 1999, but where I was in 1999 IE4's DHTML was all the rage among the elite wannabe high school web developers. Early explorations into XMLHttpRequest (via this awesome ActiveX technology, wow) and DHTML Components (which perhaps unsurprisingly don't seem all that different from today's Web Components under the surface). (I'm only remembering some of this because I recently dug up some o…
I was on the same web you were. The one where doc ozone was a bizarre novelty and well over 99.999% of text based sites had no javascript at all, much less being entirely created from javascript.
Again, certainly from the perspective of a high school web developer at the time, my "budget" consisted of just about as much JS as a I wanted and could get my hands on, whereas I was on mostly static web hosts which constrained me from doing as much as I would have liked at the time in server side code... I know I wrote some very heavy JS sites at the time, and I know I was not alone in that constraint.
Again, sure, it was mostly for novelty, but the web where websites had basically no JS at all was several years before 1999.