today Rijk also announced that the premine of Florin.org , which was planned for Airdrop on holders and marketing/development was sold to a third party. (maybe not really for Gulden thread but since both projects are linked)
The third party is Rijk. Did you really think he was going to give the premine away in a airdrop? It's the same script with Gulden, airdrop at the start and then taken for himself.
You don't know this as fact. The people who have funds stuck in witness will also think it's good, the price can be much higher when the coins are available in the future. In the short term the fact that all these people can't sell the coins because its stuck in witness makes it easier for the investors to pump the price without worrying about dumping.