Honest question: Why do YOU think people want Mastodon's user base to get bigger? You may even be one of those people, and if so, why do YOU want Mastodon's user base to grow?
Full disclosure: I don't really want or care for Mastodon to get bigger. But I also get why some people may want larger audiences for their art, or their observations about a topic, or any number of reasons.
I'm simply curious why larger social network platform size is viewed so broadly as being good or desirable.