In a wiki setting for example, it might be nice as it makes the direct human edition more accessible. Not as accessible as an embedded SVG editor of course. But still, compare how latex formula are used in Wikipedia, compared to mathml, or SVG.
I'm fond of using KaTeX for my personal blog posts. There is support for server side rendering for KaTeX (but not on GitHub pages because it necessarily opens it to arbitrary code execution - I asked).
But it notably lacks tikz support and if it can emit SVGs I'm beginning to wonder why I even use KaTeX and not something like this (beyond my personal anti-JS sentiment)
