Hello
It will not be deleted. It is part of a huge database, for users and helpers alike, to browse through earlier questions. However, as the topics gets older, it will not appear where most users look so it will get less and less attention.
The ideal would even be to have no questions asked: all questions would/could be solved by using the existing topics (about 400,000 topics currently and about 2,000,000 posts).
Wigi