I think you've hit the nail on the head there Steve. I can't comment on Brown personally, I only know him as the bloke I see around occasionally, dressed vaguely like a geography teacher in a corduroy sports jacket, lol, and I've never bought a record from him. The constant outpouring of vitriol about THE guide though, albeit amusingly undignified for us to read, trips Brown's writing style up and distracts the reader from whatever valuable critical content might follow. And you're right, makes me imagine him rocking in a basement somewhere, walls plastered with photographs of Manship with his eyes gouged out, sticking pins in his wax effigy, ha ha. Don't know if you ever saw the personal letter Brown wrote to the previous reviewer in Manifesto of price guide 5? He was literally apoplectic because the review was generally favourable, and the bile he spouted was knicker-wettingly funny.
And in the meantime Manny'll be laughing all the way to the bank I'm sure. In book publishing terms it's a classic case of the Samuel Johnson quote (as opposed to Geordie Johnson, lol) that he'd rather be attacked than unnoticed etc etc.