Originally Posted By: wagga
What In The World Happened Here? CXLVI (146):

Now that snow has fallen on Whitney, we can get back to our winter games. I posted this earlier, but noticed that my post count was only 1318, so I deleted the post, did several more to make it right.

Talking with wagga last night, I learned that the real hint is the number 1320, not any sort of "321" countdown.

And these:
Originally Posted By: wagga
We still don't have the event, so, another clue: ET phone home.

And the original posting count, (which was not quite exact), was a very good clue indeed.