... However, I don't understand why people are okay with this dumping of lisk from a forger
What would you do? In terms of risk management, you can not hold such large amount of a single altcoin. Lisk can be at $50 in a month or at 0. Who knows. Beside BTC you have to split into fiat, precious metal, stocks etc.
btw, the Lisks are not gone, just someone else holds it...