This forum relies on the kind knowledge-sharing of community volunteers. It's not realistic to think that everyone will get help

Personally I find it disrespectful to the kind volunteers in the community to see people question the value of vBulletin.org because a question goes unanswered. However I do see your point in deleting the threads that haven't got a reply in 60 days. However this would only be useful for the threads that reside in vBulletin Questions and Modification Requests. This place would be better off as an accurate resource than a semi-accurate one.