Actually my point was mainly about the readability aspect, should have made that more clear: for me there usually still is a (slight) advantage in readability if every line is not prefixed. E.g. the code you show here looks rather cluttered to me. It doesn't mean it does to you of course, if you are used to it your brain just ignores those dashes. But mine doesn't, since I am not used to it. Though it would probably take me only a couple of days.