The picture in the background of the page is from a now-defunct page coffee42.posterous.com, the Internet Archives have a name for the person with that blog, but it looks more like Photon “borrowed” the picture.
ISSN numbers are issued, but offer no guarantees that there is a serious operation behind the publication. The same thing is true for ISBNs – you can purchase one for your book for as little as $50 as a self-publisher.
@Hasseena, of course the content can be challenged. It can have been plagiarized, or the data faked, and the publication must be withdrawn. Check out Retraction Watch to see far too many papers that need to be withdrawn.