This.

There is no regression to the mean. If we're at +5000, we can go to +10000 as likely as to 0. If someone wants to time the market, do it. You can win or you can lose, but math is not on your side.

For those whining around everytime the profit is down, that's simply because you can't stand the variance. Don't call out for further reglementations, just divest partly. I have done this yesterday myself, I divested about 60% before going to sleep, because I don't want to wake up with a 20% loss.