Just as a matter of curiosity, how was question #79065, Identifying the implied gender of nouns, deleted?
So far as I recall, all other deleted questions I've looked at have a “deleted by” indication; this one merely says “deleted yesterday”.
It's been deleted fully automatically by a script.
If the question is more than
30days old, and ...
- has −1 or lower score
- has no answers
- is not locked
... it will be automatically deleted.
This check is run every week across all sites.