A new site may come to replace it, but what of the 10MM+ questions and scads more answers created by the Stack Overflow community over the last 7 years? Without the CC license all that hard work gets lost in the case SO goes rogue.
To be fair, useful life of many of those answers is likely only a few years at best. Though I generally agree: locking up contributed content is exceptionally poor Internet citizenship (Quora, Scribd).
