I thought the editors at Yahoo! Shine were merely incompetent. But it appears that they’re just on vacation:
They’ve left the janitor in charge, and though the janitor is probably a very nice person, she’s just not as well-trained as a full-time editor. An editor would know that summer is not capitalized and when you’re writing about more than one editor, you put the apostrophe after the S.
What do you think?