I think we should not mix the forum and what it represents to us, and Klaus' opinions about the state of microphones manufacturing.
Klaus, as a moderator, has helped many people, including me, understand what those old mics are through many many posts and info given away. The forum has become an amazing, very unique resource about mics, thanks to him and some other big hitters that post here.
But no one knows everything, so we come here to share opinions and experiences, and that is what forums are about.
We should accept each others' point of view knowing that it has its rightness in its foundation.
One last element is that around the world, vintage mics have the advantage of being known for much longer than new mics, so you'll obviously find more people talking about their experiences about them.