Lol, I want to start decorating for Christmas too, but will hold off. Like another member stated, some people here on this forum start Aug 1(or earlier/leave it up year round). People decorating for Xmas now is no different.
Considering the OP and assumingly the early xmas decorators both live in Canada, I can only guess they are being smart and getting it out before it snows and gets really cold. If i lived there, didn't set up for halloween, I'd probably do the same.
That is horrible. On a quick drive by (as demonstrated by your somewhat blurred photo) It looks like some inflated dude dressed in white leotards and blue tights, legs spread wide open while a polar bear stands behind him.