Something I've discovered.

Right now, it seems that this 'Booru either cannot differentiate between capitalized & non-capitalized tags, or the Aliasing has broken completely.

As someone who reliese on Danbooru tools, this is causing problems because Mahou_Shoujo_Madoka_Magica / mahou_shoujo_madoka_magica SHOULD BE showing tag content for Puella_Magi_Madoka_Magica.
Instead, something is preventing the alias from executing.

Please look into it.