Speaking as a fan of animanga as well as manhwa and manhua, I think the best way to include manhwa and manhua is to allow them to be media categories in their own right, rather than leave them as stubs or try to lump them together with manga. This way, if pages for manhwa and manhua fandoms get created on Fanlore, they can be correctly categorized instead of being erroneously assigned to Manga.

The discussion on the tag-wrangling list concerned the fact that manhwa and manhua fandoms were being grouped into Anime and Manga on AO3, even though anime and manga in English-language fandom indicate Japanese sources. The problem is not the exclusion of manhwa and manhua from the anime or manga categories--since anime and manga never encompassed manhwa and manhua to begin with--but the fallacy that manhwa and manhua are somehow subsets of anime and manga when they possess their own styles and separate histories. (The total failure of the stub for manhwa to acknowledge this fact, as well as the misleading information provided--a substantial number of manhwa series are not serialized in magazines at all--are also symptoms of this problem.) Whatever solution you do choose, I think it is important to start off by understanding exactly what are the objections being brought to the table by manhwa and manhua fans.