John is a clever person, he can create a stir around a certain subject for discussion. But surely he does this solely for the purpose of making money from it. It is likely that this is not sincere promptings.
you are too prejudiced. if you look at the doge price, you can see that there is indeed growth for the doge value even though it is back down. This market situation is indeed a bit difficult, but considering people who have big names also speak out about an asset I think it is good for the crypto market.