Mastodon is going through growing pains just. like. every. other. social network did. Every network that spins up goes through a period of "new net, who dis" while the humans try to figure what they want to get out of the network. There's moderation issues (over/under moderation), assholes and trolls, and general discussions of acceptability that eventually converges on a concept of acceptable content. Brands eventually showed up and participated, government representatives eventually saw social networks as a way of interacting with the people they serve. In the early days of social networks, government regulation wasn't a thing - Mastodon might be allowed some runway why they try and figure it out.
Sorting through all of these took /years/. I know people are excited right now about Mastodon, but this is going to take time to sort out. Make sure you participate, post the things you want to post, follow the people you want to follow, boost the content you enjoy. Put. in. the. work. to make this what you want to to be. But know that it's going to take time and if you don't stay here and participate, Mastodon will not rise into something that can continue on its own momentum.