In many ways your post was successful: It was grammatically correct, it was concise, and it did what a test posting should do. It tested. Still, I wonder if walking up to a microphone and coughing and saying, "test, 1-2-3 test" has become a cliche.
All this is to say, your post, being so narrow in its focus, lacked a message that can be used to appeal world-widely.
Test. 1-2-3. Test.