Read both revised and original version to cite paper? For papers, these questions advise to cite the original peer-reviewed version instead of a revised edition.

Now, does this mean that one should


read the revised edition, and then, if one wants to cite
also read/skim the original paper in order to cite correctly?


Is this the consensus on the correct approach, or did I misunderstand something?

(It seems like an ineffective use of time, thus the question)
I believe that you are somewhat misinterpreting the advice given in the questions that you link: the general consensus seems to be to cite the most recent version (as being the most current state of knowledge), unless you have specific reason to cite an older version.

As such, I do not believe that you generally need to read or cite prior versions.