Sure, sure, one can argue that anybody can do what they want with their coins and I've put "donations" deliberately in quotes because I've no better word for it and frankly don't know what those transactions are and what their purpose is. I guess, I shouldn't judge or try to and simply observe because YoOMMV. It might be important for others and who am I to rant about it (couldn't resist earlier)?

Some simple stats as of a few minutes ago from my node's watch-only wallet of Genesis block combo() descriptor:

• RPC listunspent yields 56,375 UTXOs, including the 50BTC coinbase UTXO which is unspendable
• RPC getwalletinfo current balance is 104.11129626BTC, so 54.11129626BTC have been thrown at the Genesis block, basically immobilized because I don't expect Satoshi to move or consolidate them

Technically those 56,374 UTXOs aren't burned because with the private key of the Genesis block the key holder could spend those UTXOs. I make the assumption that the private key is or was only known to Satoshi. If this private key still exists and is available, nobody knows, except Satoshi. I won't go into further speculations...

I've doubts that Satoshi would want coins to be immobilized and I'm quite certain, as I said earlier, he won't come and move any movable coins sent to Genesis block or other blocks he mined, besides what he already moved in the first days. Why risk his so far immaculate anonymity and stirr up things big time should he move any of the coins that are attributed to him?

If coins sent there were a token of appreciation^{I too believe most of them are} then why send huge amounts? Isn't e.g. 913sat or 2913 (2K9-01-03 aka 2009-01-03) a sufficient amount to tag the Genesis block if you need or want to do it? Then donate the rest you wanted to give to some charity or other nice and good use.

I strongly believe that Satoshi would more appreciate using and moving around bitcoins and keep them in circulation than bloating the UTXO set with coins that very very likely won't ever move again.