Reports are useful for chain of trust. Spam is common here so you can have your client auto block users who your follows have reported.  Since you are a big over weight faggot, you can also hide by words. Words you don't like such as diet or accountability. 

It's not so much free speech as it is freedom to see what you want. 

It's powerful and you can self moderate and or use clients and relays that moderate for you.

Don't let a few mean words deter you like they deserved you from being a real man. 

The principles behind nostr is solid.