What if a multi-billionaire organisation were to buy a large amount of bitcoin (for example 30%) only to destroy the private key associated to the wallet and brag about it all over the internet ?
First, would it be possible to prove the loss of the private key ? no
Second, How the market would react ?
There should me more than one multi-billionaire to buy 30% of bitcoin and it is very hard to buy such a large amount of bitcoin.
If they buy then the bitcoin price will be much much higher and if he/they destroy the private keys then these bitcoins are known as lost and increase the balue of bitcoin even more.