When I first joined the site, I thought the Refiner and Illuminator badges were impossible. They say "Edit and answer $X$ questions (both actions within $12$ hours...)"
$50$ for Refiner; $500$ for Illuminator.
Is it me or do these descriptions seem a little off? It reads as though one must edit and answer $X$ questions all within a $12$ hour timespan.
Imagine editing and answering $500$ questions in one $12$ hour timespan.