Imagine the first posts on the Internet. The first crude websites, the first cat pictures, the first memes. They were humble beginnings, a footprint of "hehe, we have no idea of what we're doing but it's fun".
Now imagine those poor attempts of communication being fixed in time forever, and potentially un-erasable, even by yourself.
Voila, welcome to Nostr. Think before you post, and take full responsibility for exercising your free speech on steroids.
Of course we are going to mess around. But my plea is: let's do that with the goal of making a garden out of this jungle. To cultivate it, so that it may carry the fruits of ideas that sustains us.