I don't mind same subject questions being brought up again. 

There are people reading & posting on AgTalk that were not here 6 months ago.

There are products available today that were not available 6 months ago.

There are long-time readers that have tried something once recommended here. Sometimes the suggestion may have only worked for the originator of the idea. Others try & outcome isn't the same. I will say that on a personal note.

You wouldn't know that if all you ever did was search and find a thread from 2011.