There's plenty of good "content" there - although calling it that feels too capitalist. People don't join Mastodon to create a product out of themselves to be consumed, as is the case on mainstream social media. That sort of influencer-based economy isn't feasible on Mastodon because it doesn't use algorithms which maximize controversy and addition over everything else. So it winds up feeling like an actual community of friends sharing common interests rather than a Skinner box optimized for endorphines.