Facebook is a product, Meta is a company. It was always weird to say Facebook in the context of Instagram, WhatsApp, Oculus etc. Heck who even uses Facebook now?
I also continue to say Twitter and prefer others to also do so because X is a terrible name to search for. It has too many common uses besides as the new name for Twitter so there are way too many false positives.
For example let's say you want to see all the times you've mentioned that site in your HN comment history. If you search for "author:tomcam twitter" in the search thingy at the bottom of most HN pages it turns up 34 comments and it looks like all of them are actually about that site or contained links to content on that site.
Change that to "author:tomcam x" and there are 13 comments. Only 4 of those are using X to mean Twitter. The x in the others come from OS-X, X-rated (in two comments), 2796 x 1290, x.into(), X.js, X-Files (in two comments), 4 x 8.
Because I'm not about to hand over one of the 26 essential letters of our alphabet to corporate whims. "Twitter" emerged as a fresh term because people embraced it—not because a billionaire decreed it. Whether it's naming a service or renaming a gulf , words—and especially their letters—belong to the public, not to the power of a few billionaires..
Personally, I think everyone should just continue to say "Twitter."