Rejecta Mathematica

There is a new journal:

Rejecta Mathematica is a new, open access, online journal that
publishes only papers that have been rejected from peer-reviewed
journals (or conferences with comparable review standards) in the
mathematical sciences.

Isn't that like almost every other journal?  Not quite:

Many authors of a rejected paper may simply have disagreed with or
chosen to not address the original reviewers' concerns. Rejecta
Mathematica also gives those authors the chance to speak out in defense
of their own paper.

One very unique aspect of Rejecta Mathematica is that each paper
includes an open letter from the authors discussing the paper's
original review process, disclosing any known flaws in the paper and
stating the case for the paper's value to the community.

Triya offers comment.  Maybe they should start a comparable journal for rejected blog posts…