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 :::Thanks. In a sense, all the negative comments that are left on his videos are secondary sources  ;   ) 
 :::Mentioning "newspaper articles; books" also seems strangely anachronistic and outmoded (especially considering the fact that Buckley's existence is hitherto almost entirely web-based). 
 :::…I could find a ton of online content mentioning how tiresome he is. 
 :::Seriously, fair point. I get it. Not that I agree with it: something like this that's so glaringly true - yet according to strict rules it can't be added to the article.  
 :::Thanks for the clear explanation, and please excuse the flinty tone in my message above.