In terms of branding, I think X is an excellent choice.

It is pointless to be fixated on what a tweet will be called because all of that can be changed to anything now. 

X is a placeholder. X can be anything, and that is the point.

X marks the spot. It’s where people go.

X is mysterious. It makes you want to gossip about the possibilities or what it may be.

Those are all important aspects of marketing - viral word of mouth. Why did he choose X? I don’t know. But could be a combination of some or all of those factors. Maybe there’s an interview where he talks about it? 🤷‍♂️

Sounds like I’m trying to apply for a job at X 😂😂😂

Just evaluating the branding decision. After all, we are allowed to think and speak freely here.