So, he's rebranding Twitter [2]:
> And soon we shall bid adieu to the twitter brand and, gradually, all the birds
And he's completely serious, and yes X is f*king terrible brand and it'll be hilarious for him to find that out in the coming months.
First of all "X" is unsearchable, so people will likely start referring to it as something like "Elon Musk's X" or god knows what. It'll make the whole site look like a joke, in case it isn't already.
Maybe his advertisers will drop in half once more. OK, I'm just daydreaming.
Fun fact; in the noughties, the Royal Mail (the UK Post Office), briefly, bafflingly, rebranded as 'Consignia'. Everyone sensibly ignored this, and they shamefacedly changed it back after a while.
But realistically people will still seach for Twitter or TwitterX or even Xcom