This gets the last word of the Facebook URL, which isn’t the whole user ID. For example, my URL is `http://www.facebook.com/peter.hilton` and this returns `hilton`, which is something else. Also, you don’t always get a photo in a Facebook public profile, e.g. http://graph.facebook.com/peter.hilton

Also, note that you can create the regular expression with just `"\\w+$".r` and that it's more common to avoid the escaping with triple quotes: `"""\w+$""".r`