> Edit: The example blog also loads js, despite the "no javascript" claim. Like: <script src="https://cdn.usefathom.com/script.js" data-site="WKWMFTPV" defer></script>. Perhaps that's not a default thing, but it seems odd to link to an example blog that doesn't match the sales pitch.
Probably safe to turn off, as uBlock Origins and other ad blocking solutions would, depending on your settings. So I guess in a way the site itself works just fine without JS enabled and doesn't require it, but the authors have chosen to add analytics to see who uses their site, then.
Bear Blog users can optionally add Fathom as an analytics tool. It's a fair criticism that this adds JS, but Fathom is arguably the best choice for analytics (maybe Plausible as well).
Seems like this is loading Fathom analytics: https://usefathom.com/
Probably safe to turn off, as uBlock Origins and other ad blocking solutions would, depending on your settings. So I guess in a way the site itself works just fine without JS enabled and doesn't require it, but the authors have chosen to add analytics to see who uses their site, then.