I would presume its a tough call! maybe it should be longer than 1 year? as some badges are assosiated with old posts. Plus when i come to an issue and solve it, then find out there is a question on here that hasnt been answered I would answer it... it has happend on a few occations where the questions were over a year old too!
also like to note that what ...
If the original poster (OP) of the question returns, and want to have
the question reopened - it will be reopened if it's closed for the
reasons mentioned above.
Should there be follow-up for post deletions? Also, are they hidden from the list of questions?
I would like to mention, many abandoned posts that have no answers may have some useful ...