Earlier, he was making lot of posts related to different altcoins. I do not advocate this action but it many times gave some boost to that coin. What is the reason that he has stopped doing that ? Has he been told not support any coin by some court order ? Or did he stop because lot of people ridiculed his actions keeping in mind the level he is at financially ?
First of all, expecting him to tweet so you could make money is the lowest form of trying to make money. Your idea to make some money and get rich is to hope that richest man on the world would tweet about the thing you are holding, so that you could get richer?
I do not believe that people should drop to this low analysis and hopes level. Go find something decent to invest into and you could make some money that way, it wouldn't be that hard neither because even a simple investment like bitcoin could get you richer. Secondly, if you look at it from Elons perspective, I could say that he doesn't have to do anything, if he wants to tweet then he would, if he doesn't want to (and evidently he doesn't) then he doesn't need to.
You will be surprised by how low people are willing to go to make money, I remember that when Elon was at its peak and tweeting about this market nonstop, there were even some people that developed their own bots to follow Elon and invest in any coin that was mentioned by him.
I know this sounds ridiculous but it happened, and what is even more ridiculous is that I am sure those people made money with such bot, as there were many people doing the same manually, so the bot could always be faster than its human counterparts, buy any coin earlier than everyone else and capture the pump before it happened.