I disagree with this perspective. You of yesteryear is in many ways just another programmer you have to work with; if that makes you cringe, you may be taking a bit too much pride in your work.
> You of yesteryear is in many ways just another programmer you have to work with
Taking that idea to the extreme of not having any feeling of ownership or pride (or lack thereof) in your past work seems rather silly to me. It wasn't just some other programmer, it was you.
I'm not saying you should cringe because the code is bad, but because you should have a sense of "well, I could have saved myself some trouble or made this cleaner/more obvious if I only knew then what I know now."