I don't know if that's the intention, but when an idea is created and then the author changes, the status isn't updated on the ideas page, and the original author continues to receive notifications of the status change.

Another thing is, the "Implemented Ideas" block could display the most recently implemented ideas, or have an option to choose. Because currently it shows the list of ideas ordered by creation date, which doesn't make sense. To me, it should be ordered by the date it was implemented.