I don't know if this is the right place to post this, but since this news affects ayu I guess it's ok.
CDJapan Supports Oricon Music Charts.
Items you purchase through CDJapan will be calculated into the daily and weekly sales data for Oricon music charts.
This applies to all items available through our store.
Please note that no personal customer data will be handed over to Oricon, only aggregate sales data.
source: http://www.cdjapan.co.jp/oricon.html
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I'm so happy about it, from now on we may get higher numbers from ayu releases!!
Note: CDJapan already supported Oricon sales before, but that was being done only one month and a half after the releasement, by that time the sales already had dropped a lot and were insignificant to charts.