"EThe Bitcointalk Times 18/06/2024 Larry brings the forum into the chain". Here you go, that's the genesis message for if it is ever archived in the blockchain.

Jokes asides, it takes
a lot of money to store it in the blockchain. I just copied and pasted every post above mine, and compressed it. It's 5.6 kilobytes. With 10 sat/vb at low priority, it'll cost 56000 sat just for this single thread (until this 21th post).
It isn't worth the money.