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.
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.