'Askers' vs 'Guessers'

Time to dust this one off again:

Let's say your husband or wife has a friend who will be coming to your city for two weeks on business. This friend writes to you and your spouse, asking if you can put him up while he's in town. Has this person committed a gross violation of etiquette? Whether you answer yes or no may speak to whether you're an Asker or a Guesser--the two personality types described in a three-year-old Web comment that has lately taken on a second life as a full-on blog meme.