ETA: solved! probably. let me test on AO3.

so I know it is possible to do small-caps text on AO3 ( as illustrated under the cut; the problem is I want to do all-caps similarly and I don't know how )

omg so much find-replace. on top of the find-replace, whenever AO3 gets the lang attribute live, to fix things to <span lang="fr">Chat Noir</span> et seq so screenreader users don't hear like group chat meets noir film.