Is NYSE investor credit a signal?

There is always a point when too much credit leads to a market correction. There is a tipping point and we may be at another one when you look at NYSE investor credit. Unfortunately a close look at the graph shows that the tipping point will change. We are at credit extremes but if you used past tipping points you would have been a net loser. The market moves higher and negative credit balances continue to grow. What is going on here?