some years ago there was a discussion about this topic which I’ve seen now.
I can understand the point why the issue can’t be shown in the same way as the other issues but I can’t see why it will be so difficult to add more information to the warning? If my code contains duplicated blocks I can scroll to one of these blocks. With a double click to the grey marker I get the information where I’ll find the other block(s). Maybe it will be helpful to add these information to the warning …