I think for regular retail investors we have a completely different view point because of most people have very different financial circumstances and therefore make very different decisions what to do with their capital.
Anyways, we are not sure if he is telling the truth or just for another entertainment. People know that he already lie to us in the past few days and I don't think we have to put concern into what he says on twitter.
It's hard to say this but we should still thank Elon right there for his effort of hyping the bitcoin. Elon's point is investments can save us from inflations but he didn't say that selling is a bad idea. We can sell if badly needed.