I'm partially unsure if I should be commenting here since I do not know Nick that well, or the other matters that could be involved in this discussion. Those two points nevertheless, not only it seems to me that your impression of him is mistaken, but that the truth lies in the exact opposite direction. If you check his posts and other writings, it seems he has the remarkable habit of taking into consideration many opposing views (e.g.: his thesis) and also putting a whole more weight into others opinions (e.g.: common as sense as a prior) than the average here at LW. I would gather others must have, at worst, a different opinion of him than the one you presented, otherwise he wouldn't be in the positions he's right now, both at FHI and GWWC. That's my two cents. Not even sure if he would agree with all of it, but I would image some data points wouldn't do harm.