[bmh_ca]

On #3 and #4 I had what I believed to be some reasonable conceptions to formulate parameters for a discussion, here: https://meta.stackexchange.com/questions/71522

Basically I suggest dividing the questions into categories of:

1. Timeless: Questions with a timeless best answer, which is unlikely to be improved or updated in the future;

2. Revolving: Questions with a "best answer" today but in the future there will be a "better answer"; and

3. Wiki: Questions that are constantly being improved and updated.

Among a few other notions.

Insofar as it was a problem of interest when I wrote it in 2010, it's only become a more prominent issue since.