Until now everyone was excited to have their own domain name on Facebook.Things started to degenerate a little bit now that everyone talks about the possibilities for a flood of trademark infringers and cybersquatters.
"The implementation of usernames on Facebook has important implications for trademark owners who may want to prevent a Facebook user from selecting their trademarks as a username. For trademark owners who have Facebook Pages, it may be important to act quickly to secure their trademark as the username for that Page. This is particularly important where there may be others with similar names in other industries who may claim a desired username".