If the user sells 100 dash then his masternode automatically goes offline, the money is not locked and can be withdrawn at any time.
There are far more traders who trade on emotions and jump on bandwagons than there are long term holders(rich people).
That's incorrect and long term holders are not necessarily rich people.
if steem power lock was removed today, steem price would crash today
That's FUD, only emotional traders fall for this.
based on performance, selling steem for DASH or Ethereum today is the smart way to trade, so removing steem power lock is guaranteed to crash the steem price, it would take months for steem to recover, if ever
Steem's poor performance is due to the lock in period. The transition from the weak to strong hands that should have taken a week took about 9 months so the chart is not looking pretty.
Most of the steem is now in strong hands which is why the price is starting to go back up. It's also why there will be no crash.
there is no hand stronger than the mechanics of steem power lock up for 13 weeks
This is only true for emotional traders like you, not long term holders.