I'm not necessarily arguing that he wants fame, only that his brag was more of a "humblebrag." He wasn't writing like someone who thinks he's the shiznit as the kids like to say (if those kids came out of a time machine from the mid-90s), he was thanking those who follow him. OF COURSE he wants some degree of fame, he not only has his twitter feed he cohosts podcasts. Even if he's not profiting from the twitter feed, he could be selling advertising on his podcast, and he could use the twitter feed to steer people to the podcast just like any other celebrity might use their twitter feed or facebook page or any other social media to steer fans to their product so they can up their asking price.
And good for him. I don't know what you do for a living, and whatever it is, I hope you love it because life is that much better when you can do what you love and love what you do. But if you COULD make a living, or supplement your living, talking about freaking theme parks, wouldn't you at least be tempted?