This guy sounds very eccentric, and clearly has a love for documenting his study of languages, but I'm not convinced he's a polyglot, at least by my definition of the word. Picking up bits and pieces of dozens of obscure languages is an interesting hobby, but as a translator and multilingual myself, I find someone who speaks, reads, writes, and understands 3 languages with native-level fluency much more interesting. However, the book in question bears investigation.