Why is it important to use short names in Plone?
Short names become apart of the URL for Plone sites. Instead of a auto generated URL, you can create an easy to remember URL. For example, say you created a “General Information” page, your URL can show up like this: generalinfo or general-info, as opposed to something like this: 2006-05-11.1561651564.
Also notice how underscores are not used in creating short names. The reason is for functionality: underscores disappear when you email the link (most word processors will format the text to become a URL so it’ll highligh and underline the text), the second reason is because it’s hard to explain to a person what an underscore is. Check out Plone’s road map for more in info: http://plone.org/products/plone/roadmap/73