[BTW I was hoping for more personal responses to my post rather than an impersonal link with no explanation.]
It's a kinda shorthand (don't take it personally) and as long as it tells us what we want most of us are happy with that. We're all quite busy little bunnies here so the 'personal' touch is sometimes a bit lacking - you'll get used to it (though we can get quite personal when the need arises ;-)