They named "Dogecoin" in the law suit because a reddit user named Dogecoin bought up a bunch of "coinye" domain names before the coin became popular to spite coinyecoin. He posted a message "Doge was here" on each domain with a picture of Doge.

The law suit is stupid and just shows what an ass Kanye West really is. I for one wish the developer's didn't get so scared and kept pursuing coinye for the pure fun of watching Kanye's lawyers chase ghosts and spend his money. But alas, the coin is dead, so he wins.