The code feature is purposely written to preserve line lengths, as some languages rely on line breaks for command structure. I agree it's annoying to have to read a thread that's had its size blown out by a run-away line, but I don't think I want to force a line break at some arbitrary point in code lines. Considering the nature of this site, it seems more important to preserve the code syntax then to make it pretty.

For the time being, the Preview option can help you make sure lines are of a reasonable length.

- h