There are clones of the Uno rolling out of China for less than half the price of authentic ones, with no loss to quality or service whatsoever.
China inc. does not pay for the forum and other costs the Arduino team make.
the "purging" of "retired" products, information, data, guides and (working) IDE examples for them.
A pessimistic and cynical summary of the Arduino-day talks ( https://youtu.be/UjeIbeDLhQY?t=3h27m ) might be something like "we're changing our target audience from the original students, artists, and hobbyists to the more profitable set containing Educational Institutions and wanna-be Entrepreneurs. Ie, from people who want to make things, to people who want to make money."