* Too long lines are hard to read. For text 11 words per line are recommended, otherwise your eyes will loose track. 11 Words is roughly 60 characters, but code is indented so you need a bit more.
* Some people look at your code in an 80-column terminal, if you use more, this would be rude.
* Some people use a GUI diff tool that displays the code side by side, so that's already 160 characters.
* Too long lines are hard to read. For text 11 words per line are recommended, otherwise your eyes will loose track. 11 Words is roughly 60 characters, but code is indented so you need a bit more.
* Some people look at your code in an 80-column terminal, if you use more, this would be rude.
* Some people use a GUI diff tool that displays the code side by side, so that's already 160 characters.