The About pageAbout page and the title for the main site page and for meta all say 'TeX - LaTeX - Stack Exchange'. We've had some discussions, for example when we had a skills contest and about the user greeting, stressing the need to cover all TeX-related matters and not just LaTeX. The 'TeX - LaTeX' thing is something of a hangover from the early days of the site. I'd therefore suggest that we standardise on 'TeX - Stack Exchange'.
(Prompted by a recent question about the text in the FAQ)