What do you think about the effort of assessing Arnell's assumptions?

Further down, I ran a little experiment, under the headline Extended peer review: Assumptions in Arnell's article. This was a special thread, with comments exclusively dealing with -as the title explained- assumptions employed by Arnell (not conclusions drawn by Arnell, conclusions drawn by other writers including journalists).  Unrelated comments were considered off-topic, and were deleted. The purpose was to find out if "we" are able to do some constructive discussions beyond the always-present question, of which group is right or evil. This effort draw quite a bit of flak, and therefore this thread is offered to allow for comments on all facets of this article, AfricaGate, the journalist Meichsner and my possible bias.