So this is kind of a theory question. Suppose an investor buys a massive amount of currency, like in the millions for a fairly low-key currency. What would that do to the value of the coin? Would it increase the value, decrease it, or keep it the same?
Could someone with enough money fuel speculation to drive up the value of the currency by himself, and then dump everything and get out? Is this a pump and dump scheme?
How are you so fucking stupid? Heard of whales?
Depends on where you buy it all from and if you buy it all at once
People would notice, and the price could adjust while people sell off to you, while others short the currency knowing you're causing a pump
And it depends on how much volume there is because a currency is worthless if pure the only person who has it (assuming it's not a petrodollar lol)
You are talking about "spoofing", and Bitfinex is already doing this:
https://medium.com/@bitfinexed/meet-spoofy-how-a-single-entity-dominates-the-price-of-bitcoin-39c711d28eb4