Code you write yourself is not usually the source of problems with significant whitespace; it's situations like posting code on websites and discussing it where code in a whitespace-significant language becomes next-to-useless when leading whitespace is stripped, whereas code in any other language will still survive and then easily be autoformatted without changing its meaning.
Can’t remember the last time this has actually happened to me. In what websites are people posting code without code block formatting support? Like, instant messengers?
