I hope people aren't reading it as silly protesting just because I'm getting old (37) and have 15+ years of neural pathways of daily use of the site to nuke. "tweeted" -> "posted on X.com" is really hard.
There's no way this will actually be allowed. Musk is petty, has deep pockets, and giving up the trademark also means losing Twitter.com and all the links to it. This filing must be a publicity stunt.
Musk has spent plenty of money on whims, perceived insult or for the LOLs before. If he doesn't like this, he could easily spend some cash to "use" the twitter marks for the smallest possible value of "use" that meets the legal standard.
I wonder if X's lawyers can argue that the millions of Twitter-branded share buttons and links all over the internet count.