The site offers conflicting information about copyright. In the above composite screenshot selections, the top one warns authors that they must sign and deliver a copyright form to the publisher, but the bottom one says “there are no copyrights involved.”
Actually, this phrashing makes sense — the bottom one refers to copyright for readers, the top one to the transfer by authors; the result is that Scigmoid owns the copyright and republishes the articles under a CC license. The advantage of this construct is that the publisher can (also) create other versions of the articles; for example, non-CC licensed books, compilations or print versions.
Of course, none of that excuses the inclusion of this publisher on your list, but I felt it might be worth remarking.