This is just a small request to all who do the great job of editing posts (especially questions) and improving the quality of the site this way:
Please, always check whether the question is properly tagged! Tagging is very important for ease of searching on the site, and for the "Related" panel on the right.
It has happened to me plenty of times that a post was edited by an experienced user, but not re-tagged. Several times I was just doing an edit myself, got the message "this post has been already edited by someone else", only to find that the other edit did not retag and it has to be done.
Thanks for doing the job!