Lately I went through the Magireco tag (or rather, its Safe and currently active portion - I'm still planning on doing that for Questionable and Explicit sooner-or-later as well, though probably won't bother with deleted posts) to add the magical girl tag where it's missing. However, I sorta ran into an issue of tagging alts from the game. Namely, while the characters are technically transformed within them, they don't really look "magical girl"-y at all, for example Swimsuit alts and Haregi alts. See post #4322597, for example - within it, there are two girls who are transformed and wearing a kimono, and three who aren't. Would someone who doesn't know Magia Record be able to tell them apart? I doubt so. That's Madoka (pink) and Sayaka (blue), btw. Or post #4032582 - one MG, seven untransformed. The MG is Iroha - pink
I'm simply afraid I'm leaning too hard on canon tagging, in here, and that's why I'm kinda hesitant on this.
I made favgroup #14430 to compile all the alts from the game, to make re-tagging easier.
Additionally, I think I might need a tip - there are some dual units in the game (that is, alts that have two characters as one unit), and I don't know how to deal with them once I get around to making tags for all the alts, similar to Holy Mami - should I make two separate tags, like Alina Gray (Halloween ver.), Misono Karin (Halloween ver.), even though the alt is shared? Or a single tag, like Alina and Karin (Halloween ver.), disregarding that there are posts where the two are separated?
If it helps, here's a Puella Magi Wiki page that lists all the alts and characters.