I see 4koma kotone...

4koma kotone is god

I don't know what she means by Mappa, but the "similar" part is likely refering to the way Matsuba (マツバ) and Mappa　(マッパ) are written.

4koma Kotone is a creepy rapist, yet is my God.

pikapika212 said:
4koma kotone is god

You are absolutely correct in that statement!