Branding. Branding. Branding!
Having a domain name is the biggest part of owning a website and it is HIGHLY recommended by Web For Actors.
Having a domain name adds a personal touch. We'd be happy to have Bradley Cooper under webforactors.com/bradley215 and Cate Blanchett under webforactors.com/cate_aus because they would be advertising Web For Actors with their websites, but for them, it makes much more sense to have their own domain name that are easier to remember and focus on them specifically.
What do you want to say in your domain name? Are you an actor? You may use that. Are you residing in New York? Good to know. But also keep in mind to pick domain names as if you were picking your new last name. Is this something I'm willing to get stuck with for a while? Of course, you can change a domain name in the future, but the age of domain name gives you bonus points, so the longer you have a particular domain name, the better for you.