They are saying, "______ (blank) is a bank", not X, formerly Twitter.

Again, X is the dumbest possible name for aything, I will never user it, just call it Twitter if you have to.

No one is saying X, the platform formerly know as Twitter, is a bank.

It's marketing. The dumber and more obnoxious something is, the better it is, because people talk about it. Just look at your own comment - as much as you dislike the name, it's you who brought up X/Twitter into the conversation, reminding us about the brand at this time and place. The name is working as intended.

Honestly how is it even possible to name a company or a product after a single letter? That shouldn't even be trademarkable.

Starbucks is the most famous

And to a lesser extent Apple has been trying