Comment by pjdesno
I'm not sure why one would compare reviews by acknowledged experts in a field with stuff written by anonymous randos, and it seems highly unlikely that anyone with the appropriate qualifications would be lurking on some mechanical turk-like site.
I'm also deeply suspicious of the confidentiality of anything sent to one of those sites.
However this does suggest the idea that a high-powered university in a low-income country might be able to cut a deal to provide reviewing services...