Currently, the "What kind of questions can I ask here?" section of the site FAQ reads:
Welcome to TeX.SX! TeX.SX is for...
However, this is incorrect, as the common nomenclature in use to indicate Stack Exchange is SE, not SX. The sentence should read:
Welcome to TeX.SE! TeX.SE is for...
Even better, it should be consistent of other areas of the site and not use an abbreviation at all, and say "Stack Exchange":
Welcome to TeX - Stack Exchange! TeX - Stack Exchange is for...
As per other
/faq sections on the Stack Exchange network such as Parenting (emphasis mine):
And Programmers (again, emphasis mine):