Now I know that the Pandanese team probably worked really hard on those, but there are some obvious flaws… I mean, I would know 三十 is 30, because well, 3 tens is 30. I mean, don’t get me wrong, some of the mnemonics are great, it’s just I don’t think it’s going to benefit a lot of people with mnemonics for words like 三十. It’s even shown in the website Pandanese was inspired by; WaniKani. They will say for example, there’s no mnemonic for “eyeball” (目玉 medama) because it’s obvious from the context (if you know what 目 and 玉 mean); eye+ball=eyeball.
Not being a toxic member of the community, I’m just mentioning. I’m always open to new ideas or comments so comment if you want!