Screen readers, the programs that use synthesized speech to tell us what's on the screen, cannot read images. Good captchas usually have audio equivalents (which come with their own set of problems), but this one doesn't. If you're blind and flagged by Cloudflare for some reason, you're cut off from accessing half the internet, potentially critical banking/governmental/medical/communications/educational services. We rely on the internet way more than our sighted peers, so this is very important. This has recently happened to me on a few sites, fortunately not critical ones, but it was not a pleasant experience nonetheless. CF engineers, please fix this ASAP. I'm surprised there still isn't a huge lawsuit over this, as this is clearly violating all sorts of laws.