I think continuity can be a cool thing or an useless limitation imposed to creators, depending on how it's used. The DC Universe is too big to have a consistent continuity (unless the universe is rebooted often, but that would be even more confusing than a convulted continuity), so it's just silly to expect every detail to fit in, and it's even worse to restrict writers because of continuity.
Another silly thing is trying to mantain the current status quo of big character (a status quo that, ironically, wouldn't have been reached if a previous status quo hadn't been changed). Sticking to the same thing forever is fucking boring. Every idea, eventually, gets old. The Superman books are a proof of that. They started gradually gettting worse until they reached a point where they can't be enjoyed. The 99 "reboot" may have made things seem more fresh for a while, but, in the end, it was just the same thing, and the books ended up being even worse than the worst years of the Jurgens era.
