I don't think this is related to the blog. From my understanding the request is to allow a different sort on this call:

{"id":2,"jsonrpc":"2.0","method":"bridge.get_account_posts","params":{"sort":"payout","account":"howo","observer":"asgarth"}}

As you can see the results are sorted by descending payout. The request is to sort chronologically. And as far as I know it's not available.