As a moderator, I have to help this community thrive and also to represent it towards Stack Exchange.
I am convinced that many of SE's recent choices: ads, CoC changes, license changes, are actively hurting this community, which I represent. Furthermore, many of our requests, if not almost all of them, no matter how well-received, no matter how sorely needed to make our community better, have been ignored for years.
At this point, it has become clear that Stack Exchange has no real interest in cooperating with me and you, the community that I represent.
It is, therefore, with regret that I have asked Stack Exchange to remove my diamond, to make it clear that I am not on board with the current direction set by them.