Could even be something as simple as meme competitions with the tag you mentioned about elon and hive since he seems to like and share memes so often.
Combine it with him pulling out of the twitter deal, etc, etc.
I posted recently about not just rewarding link sharing with the #hive tag but also discussions where #/$hive is mentioned, etc, talking with the posh dev lately if it's a possibility for him to get that going which would help incentivize people to do these kind of waves for hive on CT. Probably a different token, maybe a small airdrop/claimbdrop to posh holders and new registered users on hiveposh.com for liquidity and then it would just take a couple whales driving up price to give the crypto twitter a boost while we'd have "curators" make sure only the right sort of engagement is getting rewarded, not those blindlessly spamming, being obnoxious, negative, fuddy, etc with the hive tags.
Rather than doing the daily posts it could maybe have its own community (we could rebirth the posh community created by myself and @theycallmedan) where each "discussion" tweet (rather than POSH link tweet) could be posted onto for others to easier find them and support the ones they like with their likes and retweets, which at the same time would get the tweets more visibility in the threads and more attention from the original tweeter. This was one of the ideas behind the community (I participated in it with @acidposh if you want to take a look at it).