New categories

[quigonginger]

Hello, 
Reviewing my dear Remus has brought to my mind a question. 

When we are reviewing, should we change things that involve new 
categories?  Specificly, in reviewing Remus, I have found many old 
posts coded to James, Sirius, Remus, and/or Peter that would be better 
coded to the MMWP category, but it wasn't invented at the time they 
were coded.  Should I recode?  Or not?  Should I just add MMWP?  Or 
add MMWP and delete the individual names (assuming, of course that the 
individual post is actually about MMWP dynamics rather than about the 
individual(s) coded)?

I usually hesitate to recode, but if there is a new category, should 
we go ahead?  With caution, of course.

Ginger, wishing it would just quit raining already.