I think the most helpful thing would be to not attempt to start wars, and particularly not on behalf of anyone or against individuals. We are all on the same side here: trying to make the projects (and the project interfaces, as a part of that) better. That includes, for instance, trying out a new way of viewing photographs.
I assume of course and as always that you send your message from a place of also wanting the projects to be better and more usable. But it is hard to see how anything you suggest above gets us there.
I agree with everything Phoebe's said.
In particular, I find it difficult to take people seriously when they're suggesting "solutions" like "disabling the German Wikipedia". I am more than a little surprised this even needs to be said.
Chris