Although I see what you're saying Pubrick, I think that's more of a fallout of Tarantino becoming so big so fast. There's not anything manic about wanting to revitalize a style of film that was influential or pleasing to you, in fact it must be one of the most sane things I can think of a film lover to do. Which is what Tarantino has always expressed himself as first and foremost, a lover of film.
I argue that it is good how he energizes people to see movies, how he attempts to raise the standards, and that his place in film, especially right now, is crucial. While the Grind House movie may be blatant, it is nevertheless uncommon, and although his endeavor might not be completely altruistic, it is beneficiary to film fans as far as I can tell. QT might be a bit out there, he might not be making the films we want him to make at all, but he is setting a precedent and a mark that is going to followed, and if I may quote Hunter, "I shared a vagrant optimism that some of us were making real progress, that we had taken an honest road, and that the best of us would inevitably make it over the top."
I think you're making a brash judgement here, and perhaps even judging QT by his fans.