What I've understood so far is that it's likely the rumor that has been said before about Facebook. The other one is also, that he's just wanting to get the attention as Doge and Elon is the one that gets most of the attention in the social media and worldwide currently.
Posts like he did gets the attention of me and probably most of you guys too. But in all sum of it, I just think just as you guys that he don't want Elon to just get all the social media exposure that he gets, he must be in - probably that's on his mind.
yes it could be that he is jealous of Elon who is the attention of many people on social media, he tries to divert it by making jokes for himself and involving crypto (Bitcoin) so that it becomes the spotlight of many people like Elon did, but the posts made by Mark are of course only joke and has absolutely no effect on the price movements of the cryptocurrency market.