Or maybe you (like me) have a low-vision disability that makes low-contrast type difficult to impossible to read, and maybe the page's creator is a thoughtless dolt who's chosen light grey-on-white type, or maybe they've fallen prey to the absurd urban legend that not-quite-black type is somehow more legible than actual black type:
https://uxplanet.org/basicdesign-never-use-pure-black-in-typography-36138a3327a6
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