Logically, if you want big profits then hold onto your Bitcoin. Yes, previously we discussed Grayscale and I don't care whether they want to sell BTC or hold it, but we have our own principles to continue accumulating Bitcoin. Let them sell or buy and that's their right because it's better that they sell everything so that other people have the opportunity to buy BTC at a cheap price. So far this thread has been mixed up with ridiculous things about them and that's no reason to think about what they will do.
Bitcoin is already standing quite strong and any big dump is not able to make Bitcoin go to Zero. So if you have a logical conclusion to accumulate btc in your portfolio then do it and just follow what you have planned. Many people are waiting for low prices so don't sell your BTC to them, hold on for a long time so you will see great success in the Bitcoin investment you have made.