According to the tip box, here are the details:

One big 4 company figured it'd be best for all of their rejectees to commiserate together, so they decided to CC everyone. When following up after the faux pas, rejected candidates came back from class to a nebulous "I'm from campus recruiting, give me a call" voicemail. Let's just say it got some folks' hopes up, only to have them dashed in the first few seconds of the conversation. Campus recruiting wanted to call to apologize for their indiscretions. Seems like something that could have been settled via email, but I guess that's not their strong suit. Is this level of touche-baggery normal?

It shouldn't be too hard for you to figure out the offending firm, depending on your level of reading comprehension.

If true, what's worse, CCing everyone or the disappointing follow up call afterward?