I love these because it feels like the constraints imposed by size has encouraged folks to be creative. And there's a fair bit of diversity among the sites.

As much as I think that minimal black text on a white background can be quite elegant, there are so many sites that follow this pattern in the original link that they end up eliciting little more than a shrug from me.

The whole concept is severely flawed. They’re mostly just plain text blogs or link fronts to things that are definitely not 512 kb. Many of them link to GitHub projects. Is GitHub a 512 kb no-JS static website? I don’t think so.