If any of Satoshi's btc move i think the price will collapse instantly.
Based upon what, exactly?
So if the creator and original programmer of bitcoin moves his ,untouched for years coins, wouldn't that raise some flags for you?
Not really. Not only would I have to be able to know which coins are Satoshi's (only the first few hundred blocks can be assumed to be Satoshi's), I'd also have to know that he didn't sell those block reward addresses out-of-band. Neither of these things are knowable, unless he tells us. We'd also have to know that Satoshi himself was still alive, and some heir wasn't finally making moves with inherited funds. Keep in mind that he stopped talking to us shortly before the last Tsunami killed thousands of Japanese in a single day. If Satoshi is actually Japanese & actually an individual, he might be dead.
Go right ahead. I don't agree that everyone will sell them, but I'll offer you an early deal. Get out now and I'll pay you half price on all that you have.