Last modified: 2013-05-30 15:19:29 UTC
The visual editor can provide "header 1" as markup. In normal editing of wikis, <h1> headers are not used apart from the page title. Since it will lead to confusion as to what heading is the right one, and the answer to that is never "header 1", I would propose to remove it.
*** This bug has been marked as a duplicate of bug 43334 ***