Yeah, a mistake that I've made over and over again is not keeping some Hive liquid for the major pumps. A couple of years back I got really pissed off because I had some liquid Steem that I wanted to sell during a pump, and The deposit was offline on both major exchanges that I use. By the time I could deposit, the price had dropped again.
I loathe leaving any crypto on exchanges for obvious reasons, but especially DPOS coins. You remember what happened when the exchanges used those coins to vote for Justin Sun's witnesses. Yuck!