I think I should make a feature request to KameSame owner directly to remove ALL kanji I had learned there, but I don’t want to bother to do that, because I don’t want to disturb him and his time, and besides I had used KS for free, and I don’t think I can build something as good as KS. I think I’ll just want to test vocabularies on KS. I don’t want to type and press space over and over to find the correct kanji writing for a kanji. Anki is more satisfying for me personally.
You can check out KS thread to trace what I think more about KS.