The Best April Fools' Day Prank EVAR!!!11!

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The Best April Fools' Day Prank EVAR!!!11!
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On April Fools' Day, if you have AdBlock installed on your browser, you may have noticed that the intertubes were clogged with even more kittehs than usual. This is because AdBlock replaced all ads with images of KITTEHS, becoming CatBlock (if only for a day). As good of a prank as this was, it's almost depressing because it should be this way forever.