Sorry, I meant it jokingly. As a food acai is great, but as anything else - the claims far overshoot the research results (and most of the claims are based on no research at all).
There've been quite a few threads here about the acai claims and people's experience with them. If you search under acai, you'll find them. Judge for yourself. Nothing in those threads convinced me that acai is any different than all of the other hyped high antioxidant fruits (pomegranate, noni, mangosteen...), that have been marketed as diet aids (either suppressing appetite or supposedly revving your metabolism so you can eat more and still lose weight).
Be very careful of acai products sold by mail, online, or tv. Some of these are scams. They charge your credit card, promising a "free trial" but even after you cancel, they continue to bill you month after month and claim they have "no record" of you cancelling (meanwhile they keep billing you and sending you product).