He's not an official news poster though so he can do what he likes, even though I agree that a
full list would be much nicer. If (to pick a silly example) the sales figures showed a week where a niche title like Keijo sold half a million copies, I would probably be so flabbergasted I might quickly post that fact at the expense of everything else myself ^^;
With YOI there has been a group of people saying the first volume sales figures were a fluke or artificially inflated by the inclusion of a lottery code in the pack which prompts people to buy multiple copies (a common sales tactic which does tend to have an effect), so in that respect them holding pretty steady between volumes is newsworthy to those following the series and praying for its success.
A sports series selling tens of thousands of copies on release is rather unusual in the anime world in general, as is a series with a homosexual couple (strangely enough, given the buying power of fujoshi and the success of the BL genre overall). It's also topical given the fan rage over how YOI could only possibly have won Crunchyroll's popularity contest by artificially inflating its numbers, which is why I slung Buzz's on-point commentary a Like ;p
Feel free to highlight other noteworthy observations from the sales figures too!
R