This is my primary objection to using 80 columns everywhere. Markdown specifically is a painful place to require it, but also latex and HTML. For source code, 8

This is my primary objection to using 80 columns everywhere. Markdown specifically is a painful place to require it, but also latex and HTML. For source code, 80-col works out ok most of the time since "sentences" are relatively short, but even there I prefer to use more semantic line breaks when the style guide or formatting tool does not omit them.