Board Thread:Naruto Discussions/@comment-24967434-20140827102857/@comment-1512913-20140827155107

It has nothing to do with Japan in particular. What you tend to read on Wednesdays on the internet are illegally scanned and leaked chapters that aren't supposed to be available until 5 days later.

The government is now more strict against piracy, so the scan groups will no longer copy and upload the chapters early, they are at risk now more than ever. So from now on, the manga is unlikely to be available online until it actually is for sale.