Should journalists use "words"?

I’ve not really felt inspired to comment on the whole “should journalists check facts” furore, because, really, me rolling my eyes doesn’t make for great blogging. But I couldn’t resist linking to this:

One example: the word “maintenance” seems like it should only have one “a” in it. It should be “maintenence,” right? But it’s not. So is it our job as reporters and editors to spell it correctly?