This kind of search is onerous to input and literally can't be done by most users due to search tag limits (and potentially also search timeouts from the number of exclusions). In theory, I guess excluding official alternate costume after a character's "base" tag should cover this use-case and come within the 2 tag search limit for regular members, but my experiences of attempting this have always met a large number of untagged official alternate costume posts, cosplay posts, and unofficial alternate costume posts that don't allow this kind of search to be very practical for normal users, especially when it comes to characters whose alternate costume(s) are vastly more popular than their original one (example: Le Malin), so I wonder if something better could be done. Is there a better way to doing this I'm not aware of, or is the thread title pertinent?
Updated by Nell

