Haha, went to add lazy img loading to #brutaldon now that #Firefox nightly supports it, and then saw that I already had done it. I guess a while ago I had added it with a polyfill for Firefox, and when I removed the gross polyfill, I left the loading="lazy" tags in and just let Firefox fall back to the default eager-loading behavior. So now at least I was able to watch the network tab of the development tools while I scrolled down, and see that lazy image loading is, in fact, working.