dbus creates messagebus group and user with ID above 500

[David Liontooth]

In the dbus portfile I find:

pre-activate {
        addgroup messagebus
        adduser messagebus gid=[existsgroup messagebus] 
realname=Message\ Bus
}

If dbus has to create a user (is it required?), it should find a number 
below 500 for system users.

Users above 500 are reserved for those pesky real human users.

Any ill effects from deleting the user/group?

Dave