I don't think the examples in your link actually disappear. If Nancy can figure out what happened, it would be worth adding to that list.
wrong 1: an example
wrong 2: [an example] (http://example.com/index.html)
wrong 3: not on that list
wrong 4: example_but not_a link
If it's worth saying, but not worth its own post, even in Discussion, it goes here.