Why is this site called TeX and not LaTeX? Does it have to do with copyright?
The site name is formally 'TeX - LaTeX StackExchange'. This reflects the fact that TeX is more than LaTeX (plain TeX, ConTeXt, related tools, etc.). Calling it just 'LaTeX' would be restrictive, whilst just 'TeX' could put off LaTeX users: by user numbers LaTeX is the dominant form of TeX.