No idea why have you decided to bump this 6 months old thread, but the topic discusses people choosing to withdraw from exchanges into non-custodial wallets. This is not the behaviour of someone looking to panic sell, but quite the opposite.
I wonder if the trend continued since this topic was created. I have no access to that chart on glassnode (not available to standard users) but if anyone could post an update, it would be great. I sense the outflow from exchanges was likely to continue, i.e. considering some regulatory limitations imposed on exchanges, e.g. binance closing their "earn" options in some of the countries, making it pointless for many to keep their funds there.
According to the data collected by coinglass.com and shown in the graph below Bitcoin outflow from exchanges has taken a pause in last six months but if we zoom out we can definitely state it is a general trend switching from exchanges to self custodial solutions.