It might be a joke but the rate the community has grown over time is insane. And those people are not only fan of doge , they are fans of cryptos.
Unlike other coins , doge is bringing in people that had no clue about coins , the other are attracting people who already experienced bitcoin.
This is the key that many people seem to miss. Yes, Doge has done a fantastic job being people into the crypto community at large. But it is a gateway crypto. Most people will move onto Bitcoin if they are looking for a store of value, or something like Litecoin if they are looking for an investment. Doge is a humorous way to introduce people to crypto - most won't stay.