<p>This applies to many of us who have been members of this site for many years.  Some of my old questions and answers get reviewed periodically.  This is fine.  Members have a right to upvote or downvote as they see fit.  The problem is that I am finding some old and often popular questions and answers are getting downvotes even though they were perfectly reasonable questions and answers at the time.  In my case for example an answer given in 2012 is now being downvoted in 2017. The problem is that I answered about SAS software at the time and it is being judged today when changes have been made to other software (especially R) that make it more acceptable in FDA studies.</p>

<p>I don't know what should be done but I feel that such questions and answers should not be judged badly in view of current software developments.  I would like to know what others think could be a reasonable solution.</p>
