[Azrael3000]

No it's about the renaming of Twitter.

[0] https://nitter.net/elonmusk

[0xblinq]

So it’s about Musk’s son name

[kimbernator]

Given that Musk's obsession with the "X" moniker goes back to the 90s at least, I imagine it would be more accurate to say his son's name and this rebrand are both branches from the same tree (see: x.com -> paypal, SpaceX, Tesla model X)