Should there be a description of what UX *is* on the help homepage?

Questions are sometimes asked on StackExchange which show that the questioner isn't really aware of what UX actually is.

When this happens the subject is - quite rightly - put on hold and they are directed here: http://ux.stackexchange.com/help/on-topic.

Yes I know that the answer to 'what is UX' is nuanced (understatement) - but the philosophy of StackExchange is inclusive and helpful. Should there be something on that page to help educate people who think they know what UX is, but are not quite there?