If I have to enable javascript to view parts of your website at all, then it isn't anything like 1999.
It would be possible to create a client that didn't, but that doesn't exist today.
Here's an example of a blog post written in 1999.io.
http://scripting.com/2016/06/08/1311.html
You do NOT need JS on to read it, by design.
One note - on that page, it seems that while the content is there independent of Javascript, the navigation is loaded (from three different domains) with Javascript. I suspect there's a more graceful way to fallback there.
> It would be possible to create a client that didn't, but that doesn't exist today.
I think the client exists: it's a web browser using forms. Not as nice as what we all expected we would have by now back in the 90s, but it works. A blog entry's just a title and some text. Throw in an input field for the title, and a textarea for some Markdown and baby you've got a blog!
JS is older than that, and early uses of it were notorious for not having graceful fallbacks, so, no, I think that description is not at all unlike 1999.