This comes across as a mostly tongue-in-cheek app. I don't expect it would have any practical application or is likely to genuinely fool anyone; it's more a joke about getting internet users to host their own trenchant comments that don't contribute to discussion. I wouldn't take it too seriously.
I don't get it either. If you want comments, add in a commenting system, and if not, don't have one. Lots of blogs are just fine without comments, so I don't see how this improves on that with regards to trolls and spammers, except that this infuriates and chases away users who want real discussion.