For people familiar with the background for these articles, it's easy to figure out the notability, because you just know. 
 The problem with the articles is that in themselves, they don't really have much by way of explaining why they are notable or how come they are verifiable, as per policy. 
 So no matter who does it or what you think of any particular nominator, sooner or later these pages will be back on articles for deletion, unless they get improved.
 In the case of PZFUN, in fact he has many featured articles under his belt. He also got slandered by Siegenthaler on national television and held his ground. I'm pretty convinced of this gentlemans maturity. I linked to several pages where he has been attacked above, and he's been attacked on AFD, of course.