Ha, I quite enjoy doing this in comments or commit messages where practicable. But, that's just a few lines. :)
It's a guilty pleasure of mine, spending a few minutes to clean up the aesthetics of docstrings and comments. I justify (heh) it to myself by catching unclear wording on this last cleanup pass -- and not taking it too far, obstrusifying for the aesthetic.
I must admit to occasionally rearranging words or choosing different synonyms to make a column of spaces line up in a monospaced paragraph, so that you could draw a straight line down one column the screen without passing through any letters or punctuation. Or making a diagonal line of spaces, top-left to bottom-right.
I usually only did that when the text already was close to lining up that way, though.