***Note:*** This was originally posted about apple.stackexchange, but applies more broadly to any technology or evolving topic. 

It appears that because Apple changes a lot in each release of Xcode/iOS/Cocoa, answers (and questions) from two years ago are not only completely useless, they clog Google results to the point you can't possibly find a valid answer to your question. (SO should care about Google, I'm sure). 

Looking for `UIButton` gets you a ton of Q&A from 3 years back, and it has become a major annoyance to look for the date before reading the Q&A.

What do you think about this drastic move - hide all Apple-related Q&A with no updates since 2009, say ? Or, at least hide it to crawlers.