I've never hear of such a thing. To me it would be hard to tie in the feedback system with the order of who gets the latest insider build first.
I thought it was an random thing and more of a first come first to the newest build.
Out of personal interest repeated that now, this time starting from scratch. Clean installed 1607 on a vm, with a local account. Signed up for Insider program with an email that has never been used as a sign in account to any Windows machine, which has never been in Insider program.
Maybe this coming week we'll get a new build, let's see what happens.
Even so what would be the point ? A gratification to whoever provides the most feedback ?With todays technology why would this be hard.
Let's get real here. MS is a corporation not one known for toying around.
I switched to Insider from a clean install of AU, got the new Build right away. Haven't given any Feedback in months!