Not that I agree with the OP at all. As I matter of fact, I think it's very much a Hanlon's Razor sort of thing.

Back to the NoStarch Press thing - they do have some type of major business relationship with OReilly. From nostarch:

Beginning January 1st, 2004 our US distributor is O'Reilly & Associates (www.oreilly.com). O'Reilly represents No Starch Press books to all major wholesalers (Ingram, Baker & Taylor, Bookazine, Koen, etc.), national chains and independents, online booksellers, and academic and technical bookstores, as well as directly to consumers through direct marketing and trade shows.