Departments that bring in assistant professor candidates and then make them find out they didn’t get the job from the wiki, rather than notifying them promptly themselves, are the academic-institutional equivalents of people who dump their significant others by leaving a voicemail. These candidates, by and large, spent a lot of time preparing, they made a good faith effort, they had their hopes up, and they deserve to hear the news directly from the department rather than seeing it online or having some frenemy call them and say “Hey, the wiki says Department X has made an offer. Is it you?”
I guess the analogy would be more strictly correct by saying they were the academic-institutional equivalents of people who break up with their significant others by having some anonymous person leave a voicemail. Or maybe separating from your wife by holding a press conference before telling your wife. Still, you get what I mean. Not classy. And, by this point, any department of reasonable esteem and size that is unaware of the existence of a job market wiki should get docked ten points in the rankings for institutional cluelessness.
(I think I wrote something about this on my former blog last year. Whatever, it bears repeating. Perhaps me grousing about it will become an annual tradition.)