Great success! deleting blogger posts from google reader cache

So I accidentally this blog post here instead of on my private blog, and I immediately remembered being perplexed by how to delete test posts from google reader's cache a few years ago. It turns out you can't delete posts, but you can overwrite their content. Except I already "deleted" the post from the blogger.com frontend, so how the heck do I edit the content of the post? @__@

Now that superuser exists, it's superuser.com to the rescue!

I found this tutorial:
http://crsouza.blogspot.com/2010/03/partial-least-squares-analysis-and.html

Sort of linked from here:
http://superuser.com/questions/56908/remove-deleted-posts-from-central-google-reader-cache
Except the superuser link is to a ruby script, and it was much more useful to just do it by hand when I just had my most recent post to "unblog" instead of bothering with trying to install ruby / run it on windows *shudders*

I just changed the "post options" timestamp to 10 minutes later,  refreshed google reader, and voila my private content is gone and instead you see... this post :)