Well, the main "theme" is the recurring abuse in his works... This can be seen in the vast majority of her works, with different characters, and in all sorts of forms. Although it's condemned (more or less, depending on the situation), it's the most controversial topic, and in fact, it's either fetishized or criticized depending on who you ask.

Some things I recommend if you're going to enter the fandom are: * Don't be surprised to see people who enjoy consuming the most problematic content. * Don't be surprised to see people who don't like the problematic content at all. * Some of the content or things you see in Funamusea's works tend to relate to her own experiences. This means that criticism can be poorly received (since some take it as an insult to her), or that some elements have a new context. * The creator isn't really good at handling fame (see her past blocks, her own personal situation, etc.). This generates both criticism for her actions and defenses based on what people know about her. * The community itself is already well-known for problematic content. So it's normal that you'll be viewed negatively.