Basically, why are we tagging copyrights when nothing in the picture is indicative of the copyright other than the character's age? For instance, all older pictures of Nanoha get the Strikers tag even though nothing in the picture pertains to that copyright other than the character's age. This also applies to when the characters are younger with no other visual identifiers getting the Mahou Shoujo Lyrical Nanoha tag, or the A's tag if the characters from that series are present.
I'm of the opinion that unless there is something unique to a particular copyright in the picture, then it should just get the umbrella Lyrical Nanoha tag. For the age thing, we can add the younger or older tags, or perhaps create new character tags like takamachi_nanoha_(younger) and takamachi_nanoha_(older). Thoughts?