Joe the plumber up for deletion on Wikipedia?

Over at Crooked Timber, Eszter Hargittai notes that the Wikipedia article on Joe the plumber is being considered for deletion:

Can anyone help me understand why some people are so vehemently opposed to certain people (or topics) having entries on Wikipedia? Why do people get so worked up about the mere existence of certain entries? Currently, an entry for Joe the Plumber is being debated. Does it really dilute the value of Wikipedia to have entries like that? I remember when some people contested my entry (I wasn’t the one to put it up), it felt like some amateurish tenure review, except with not quite the same consequences. Would anyone care to defend the practice? I’m eager to understand the motivations better.

In fact, Wikipedia’s admins decided to keep it for now. But they may of course remove it later. So I’ve copied it over to Includipedia: Joe the plumber.