We definitely not sure then what is their plan as they are very aggressive accumulating Bitcoin but even they are buying more, it doesn't give worries to us. These numbers of 2% plus versus the total amount of market supply, that is an only small amount and it don't have a huge impact on the market.

We don't mind about the 51% market attack. This is not the way it looks like.
It is something to say that Grayscale is getting prepared for future changes. And they are doing it earlier, there is nothing to worry about and probably many companies have done this silently.