Perhaps you missed it, but most of the graphs in your link are from July. The flash crash was May 6. So unless you want to assert that the flash crash caused the weird graphs, no, I don't see the connection. That's not to say you couldn't find similar graphs on May 6 - I guarantee that you could. In fact, you can find graphs like this almost every day (pre and post crash) if you look hard enough. And yet, we don't have flash crashes every day. We've only had two (the first was in 1962 http://online.wsj.com/article/SB1000142405274870395760457527... ).

So yeah, I do expect you to do more than point out an everyday occurrence and then assert that it (and not thousands of other things, including things which don't happen every day) caused a once-in-a-lifetime event. I expect, I dunno, correlations at the very least. Maybe even a mechanism, rather than just a theory that "I don't understand everyday event A or once in a lifetime event B, they must be related."