Investor Credit Chart

[justostash]

This chart looks really scary. You guys are good at picking apart scary charts, so does anybody care to comment?  Basically it shows how enormous the credit (margin) used to buy stocks is right now compared to the past.  It's from this article:
https://www.advisorperspectives.com/dshort/updates/2018/07/27/margin-debt-and-the-market
I think of all the charts I've seen lately, this one scares me the most.

[PDXTabs]

There have been a few other threads talking about margin debt in the last year or so. I'm on the side that this chart is a harbinger of a big correction coming, but most of the other members seem to disagree. Either way I'm not going to change my investing strategy.