If you are serious then you need help.
I do, I suffer from CDO.
Why would you prefix the dots? Is this some nerd IT problem?
Yes.
What is annoying is calling them “dots”, they are not just “dots”.
What are they then? RFC1034 (and many others) would disagree with you.
so you could have a www, www2 and www3 version of the same domain name?
Yep. You can have (almost) anything you like. There’s no technical reason for “www” other than most people did it and it caught on. “Web” used to be popular in the early days too. Historically, it was the machine name of the web server. There’s nothing to stop you from calling your web servers Dave and Brian, and having websites of dave.domain.com and brian.domain.com, other than people aren’t used to it.
The BBC do this with some of their websites. If you go to news.bbc.co.uk for instance, it redirects to http://www.bbc.co.uk/news.
(edit – amusingly, not only do most people expect websites to start with www, so does the parser on this website…)