I think the term "CS illiterate" is not offensive in-and-of itself, especially since it was clearly meant facetiously. However, I think you conflate being cs i

I think the term "CS illiterate" is not offensive in-and-of itself, especially since it was clearly meant facetiously. However, I think you conflate being cs illiterate (not knowing how to code) with not knowing how to use technology intelligently and being vaguely technophobic (e.g., saving all your files on the desktop). I don't think knowing how to upload data to github leads to cs literacy, but it does seem to be a marker of participation in the cs community and in this case, at least, allows access to others with more cs expertise.