Nah I think it's more to poke the SEC in the eye. He hates them, and hates government rules selectively enforced on people the bureaucracy/media doesn't like.

He knows he couldn't pull this shit with public stocks*, so he boldly does it with crypto. Laughing at the SEC and daring them to regulate while he manipulates the market and makes money on the dips.

(*although he did say TSLA was overvalued, I still think that fits into his behavior pattern here)