Board Thread:The Panopticon/@comment-4028641-20150917235441/@comment-1023755-20150919003452

OttselSpy25 wrote: That's just the thing, that's not the point of the prefix at all. The point is to denote a difference between stories which we have deemed invalid. Z:WBYJIE is still a valid story because they had the rights to use the Zygons, as discussed in a previous forum. We don't dabble in canon on this site anymore because it's a complex concept which isn't what we're looking to cover for many stories we discount.

Well I suppose all of this just furthers your argument then, honestly. I'm not exactly a "newcomer" to the site as suggested in the OP but this was still the first time coming across that prefix and that is what I assumed it to mean aha.