Hang on... is it “stolen”? If you trick some people into giving their money to you, it’s unethical, but you didn’t force them to hand you their money against their will.
I would say “taken” is fair; but “stolen” isn’t exactly right.
For example, historically the UK had "Theft By Deception" a type of theft in which the requirement is that you deceive people, intentionally, in order to permanently deprive them of something of value rather than just taking it.
This was replaced by modern Fraud crimes this century. The new crimes reduce what prosecutors need to show somewhat. With "Theft by deception" there can be a problem if the prosecutor struggles to show that the defendant actually permanently deprived the victim of something of value, especially if the victim realised there was a problem in time to use some sort of "claw back" mechanism. With Fraud the prosecutor can show that the defendant intended to gain even if ultimately that didn't work, so long as the deception actually happened the crime was not merely attempted.
All these Tweets are Fraud by False Representation under that replacement law, because the tweet deliberately pretends to be from somebody (e.g. Apple or Bill Gates) when it's actually from the perpetrator of the crime and it's clear that they intended to gain from getting Bitcoin sent to this account even if a prosecutor can't prove how much they actually made.
If I ask you to give me a loan and I say I'll pay it back with 100% interest in a few days, and then I run away with your loan and never pay it back, then yes, it's stealing.
That's all that's happening here, except in units of BTC and not USD...
I would say “taken” is fair; but “stolen” isn’t exactly right.
Plus there is no way it will be that much.