Because that's where people are. A status page is only usable when you already know about the issue and check to see if it's known and on their end. A tweet on

Because that's where people are. A status page is only usable when you already know about the issue and check to see if it's known and on their end. A tweet on the other hand makes you aware about the issue even before you've noticed. It's like getting a notification on breaking news so you turn on the TV or click through to read about it.