I remember creating some templates at the start, but yeah, creating the actual building blocks is the hard part, so copy-pasting became the norm at some point.
The endgame of templating is basically Semantic Mediawiki+Page Forms and becomes something like this
which can basically be queried like a database.
I'd love to get there, but as previously mentioned, with existing content, that's a lot of pages to edit and probably something for a bot.
You can see all templates here
. Templates specific to project-imas.com aren't categorized as such, so you can probably find them in Uncategorized templates
. To begin with, we could slap a category to project-imas.com-specific, character and/or song templates to find them in the sea of imported Wikipedia templates.
Suffice to say you get my seal of approval if you want to factorize code and put in some order.