Elon Musk has displayed incredible prowess at manipulating modern internet media. He launched "tesla shorts" right when a few big short sellers announced their positions (I believe one of them also put out a report about TSLA being insolvent aside from income from pre-orders, and was proven correct by Musk years later) and SEO-ed them into the ground.

I would assume that several of the pro-elon accounts on most social media are actually either bots or shills. You don't need many shills to get real people interested.