You got sensible, so I gave you a second chance
I't really just to avoid confusion. Say you have a customer who has not yet visited your site. You give them the url or they hear it word of mouth, forget and enter the wrong one by mistake.
They arrive at a site thats similar and don't like it, find it a waste of time etc etc - you have lost the customer before they have even arrived.
microsoft didn't pay off mike rowe for
www.mikerowesoft.com for no reason !