it is gradually making sense because coinbase has shown that it has no genuine reason to explain why they listed dogecoin. known the fact that it has nothing to offer but just meme. A meme coin goes to coinbase, one of the most reputable exchange.their token sales that plummet down below IPO price shows that they have nothing serious to offer. they might list shibabu coin soon because of the high vloume and marketcap.
They don't need any reason since Doge becomes one of the highly recognized coin in this world even though it reached people who don't have any idea what is the investment due to the hype created by Elon Musk and after that Doge is holding its place in marketcap value, so if coinbase list them means they are going to make money when people used to trade there.