This journal claims that
In order to maintain highest level of transparency and high standard of review, this journal presently follows highly respected and toughest Advanced OPEN peer-review system (ExampleLink1, Link2, Link3, Link4, Link5, Link6, Link7, Link8, Link9, Link10, etc.). We hope that you will appreciate this Advanced OPEN peer-review system, which is expected to give doubtless scholarly benefit and impact to the authors in long run. Additionally we strongly encourage and promote “Post-publication Peer review” by our comment section.
Doubtless scholarly benefit and impact in long run for only $100. Sounds like a great deal.