I would just like to throw some light on the confusion regarding what kind of old queries should be answered and which all should not be answered.
First of all, members should check whether the query has received sufficient responses and whether the responses satisfy the requirement of the query. If yes, please avoid answering such questions.
Secondly, some genuine questions need instant answers. Such old queries should not be answered. This holds specially for technical and medical questions. Say for instance, a person asks for cancer treatments some 2 yrs back. Definitely, either the patient would be fine in the span of 1 yr max 2 yrs or he would have passed away. So there is no point suggesting anything to such queries.
Technical example, say someone's mobile phone has crashed and he asked how to recover data 6 months back. Then he wont be sitting waiting for members to answer for such long. Either in 15 days he will get it repaired or would change the handset. So again, no point answering.
Both the above scenarios when the problem is rare and the question has enough responses. If there are no responses and you really have a solution, you can answer them as it can help other members too.
Third scenario is when some generic questions are asked. Say some one asked about teams of IPL. Just by reading such generic questions we can understand the importance of the response for the member. There is no point answering general questions because the author never needed it and even if he did he might have got his answer in the first 2 responses itself.
What type of Old questions can be answered?
Now coming to the point "What type of Old questions can be answered" :
Questions like "how to reduce weight?", "How to remove coffee stains from white cloth", "How to avoid getting into arguments?", "How to control anger?" etc are some of the types that can be answered even after 5 yrs if and only if "You have a unique solution" which has not been mentioned anywhere in the earlier responses by other members.
Reason being such problems are long lasting and the member asking the query might not get answer to them even after several years of searching the solutions or he might have tried the earlier solutions recommended but still his problem persists. Such common problems are faced by numerous other members or readers too and if the member asking the query has resolved his problem also, your suggestion can help other members.
Hope there is some clarity now about what to answer and what not to answer. The main point to be looked upon while answering any old question is whether it has been answered sufficiently by other members earlier and that you have a unique solution which has not been discussed at all in the earlier responses. Only in such cases it makes sense to pull up an old question to answer else its waste.
Thanks & Regards,
Lead Editor(Ask Expert)