Users with "close" priviledge can mark off-topic questions to be migrated to thie Meta.TeX.SX site. I suggest to add two more migration options:
StackOverflow - for questions about MathJaX
GraphicDesign.SX - for questions purely about typography
I know I can alert the moderators and they can migrate to any site, still I think that these two migration pathes would be helpful.
There was a previous discussion about this with no real conclusion. The two suggestions I propose here are supported by numerous "likes" in the other thread.