NVDA is free. It just reads the screen. A lot of modern websites are hard for sighted readers to read these days, with scripted ads, banners, menus, chat boxes, and paywalls popping up over the text. Aside from privacy and everything else, ADA compliance is another reason to keep a website simple. Even MIT & Harvard had to deal with this on their EdX online learning platform, in that case by adding closed captioning for the deaf.