Last modified: 2013-11-12 16:29:55 UTC
The message Wikibase-deletedentity says "Deleted $1", where $1 can be different things - property or some other thing.
If $1 comes from a limited list of possible values, there should be a separate message for every such value, because is many languages the word "deleted" changes according to the thing that was deleted. For example, in Hebrew and Russian it changes according to the gender of $1.
If $1 is generic and doesn't have an expected value (for example, a page name or a property name), then it's OK to leave the message as it is, but then the qqq documentation must clarify it.
Appears to have been fixed a while ago: