People buying bitcoin due to Elon's tweets will come and go and cause volatility, but it's an inevitable step in the larger journey of this technology. Gatekeeping will only cause your own blood pressure to go up, so I'd just make sure I got my keys in a safe place, buy the dips that result from these sudden adoptions and go with the flow.
Also, every newbie who comes along because of Elon has a chance to evolve into a lifelong holder. In the short term, it can be annoying but in the long term, it'll strengthen bitcoin.
What are your thoughts?
On a side note, buying and selling based solely on his tweets is a bad idea even nowadays when he has some power because many other factors contribute to price changes.