Yeah I have indexed a lot of em. I'm specifically talking about the ones that try to resemble the archetypal personal geocities site with tiled backgrounds, gifs, and whatnot. I've found that these predominantly were created as part of a web fad and were quickly abandoned.

I am all for handcoded html, SSGs, and minimal-to-no js.

My mtg site is kind of one of those. I use a static site generator, but I wrote the html templates and CSS myself to match the aesthetic I wanted.

I have robots.txt configured to keep it mostly unmolested, but I don't think it's fully unindexed.

That said, it's not very evocative of 90s web style. I do not miss those days (despite being the owner of a webhosting/design company at the time).