Great question zee007,
Since the home page of the property and the post page have different URL's, it would just be a matter of which one gets indexed first. So a home page might be example.com (and has a post on it) and the post page might be example.com/post#1. Google may crawl the home page first or the post page first but either way the content will be indexed.
I don't have any solid proof on this but I would venture a guess that most reputable web 2.0's have canonical functions in place.
Hope that helps,
Shawn