I thought for sure I'd read a question here on Meta that addressed this already, but I couldn't find it again.
In this question I answered one part of the question, however there was a second part about the significance of the designations that was not addressed. My answer was tagged as the answer, however, parallel answers do somewhat address the secondary part. I'd like to edit my answer to include similar details, but am uncertain as to the protocol and general acceptance of doing so.
In other words, is it frowned upon to flesh out existing answers with details garnered or informed by other answers? My instinct says editing answers to provide more details is acceptable, regardless of where the additional detail came from, however I'm uncertain if that's desirable by the SFF.SE community.