There is this old post here which got recently pushed up on the "active" top questions.
On closer inspection, this was only due to a new user adding a new answer. However, the user (presumeably) realized he was answering an old topic, and subsequently (and rightfully) deleted his answer.
However, the questions still remains "top" on the "recently active" list, and I was wondering if this is a bug or should be considered as one. Not only does it "resurrect" old questions, but it also showcases that it is possible to "push" topics in this manner.
To "push" a question, simply add an answer and then delete it.
The question will move to the top of the list and shows a "modified by" entry, despite the answer being deleted (and the change invisible to many users.)
Just did it here on the main site:
Somehow, I believe, such practice should not be possible by the system and "deleted" posts should also be ignored in the recent changes, should it not?