Without 2k rep, code formatting is impossible, because it just adds spaces, which don't count for the 6-character-ritual-threshold.
This question is related to impossible title-improvements for a similar reason, brought up here: why it is impossible to just change the title of a foreign user
A more or less unreadable and therefore senseless question crossed my way today, which wasn't readable because of missing code-indentation. (Many regex-tools like grep, sed, awk work on a line-by-line basis, so it is essential to see, where a line starts and ends.
I put the indentation in, but got an error: at least 6 changes, not counting: white space. Uhm.
- I looked for something obvious, which could be changed too - nothing.
- I looked for something not so obvious, which could be changed too - nothing.
- I got angry and left the page, because I didn't want to write some foobar, or a disclaimer why this disclaimer, which would be much longer than 6 characters.
- I had the idea to comment my edit in the question itself - this wouldn't be foobar, but have a bit of sense.
- When I finished my comment, I was informed, that meanwhile somebody else did edit that question. I left the question, angry. Lost much time in doing 6-character-gymnastics.
Conclusion: The quality of an improvement isn't much related on the quantity of changed characters, especially not, if whitespace doesn't count.
P.S.: I suggest the new "6-character-rule"-tag.