Distributed 2.4M, solded 1.99M.

Wrong, it is sold through PSN plus estimative of sold through on retail (in some cases it will be very near shipped).

Sure there would be a difference between sold through and played because of logistics taking some time for end user to receive.

The site simply estimate total of users based on the trophy percentage and other methods, they can't really measure how many were sold.

And now you are just flat out lying.

The discrepancy you see between sony sold through and the stat on that site isn't that sony sold means shipped (this should be clear if you look at any of sonys financial reports and their usual sell through media briefs).

Its because not all 4M sold copies went to players that actually were playing with an active "online" connection. The only way sites like those track data is if you actually are online while you played the game. Unless of course you really believe that all 110M+ PS4 owners are playing with an active online connection all the time.

The truth is that sites like that are actually really bad to use and track sold through data. Its kinda obvious if you think about it. That sites track trophies and use the percentage values of the most common trophies to determine how many people actually have the game. A very big hole with that is, what about the home with multiple accounts on the same PS4? They could buy one copy of the game but it would be played by 3 people. And what about those that don't even log in to the internet?

Plus a good chunky of the people who bought the game either pre-order or day one if was physical copy may not have received it on that first 3 days that is accountede.

Sure long term we will have Sony shipped+digital and this tracking approaching one another, with only people that never log their PS4 on internet (probaly very small number) being the difference between both since shipped will basically be sold anyway.