I agree. I've had two articles reviewed by now (not in a science field, but still), and only one reviewer was relatively unhelpful (they thought the paper was too dense and insufficiently well presented to do a detailed review); all the others, even whey they could not recommend acceptance, went out of their way to suggest various ways of making the paper(s) better.
People are in general much more likely to bother giving negative feedback than to give positive feedback, much less defend other people's efforts. I'm afraid such a system would be no different: would a ton of "likes" offset the negativity of a couple of arseholes wreaking havoc in the comments to make it worth it?
People are in general much more likely to bother giving negative feedback than to give positive feedback, much less defend other people's efforts. I'm afraid such a system would be no different: would a ton of "likes" offset the negativity of a couple of arseholes wreaking havoc in the comments to make it worth it?