I don't know. It's all still new and there is no definitive rule. In decentralized environments, prohibiting is always complex. The important thing is not to give feedback and visibility to people who don't have the same moral principles as you.
Discussion
I worry that it will be easy for people to launch mass reporting attacks on those they disagree with like they do on X/Twitter
These attacks on X don't have much effect, the community notes are robust enough to get around this. But on NOSTR there is no such attack option. Because if you follow the person you will continue to see them. If a relay blocks you, you can use another one.
Having your account flagged with reports will still suppress your reach though right? Because many clients and relays will deny your request. Your content then can't be boasted as well. So it's technically "freedom of speech but not freedom of reach" similar to X
Not necessarily. Because I can find a relay that doesn't block me or create my own. And when I update my relay list, whoever follows me will get my ratings from the new relay. In NOSTR there is no reach, because there is no feed algorithm. You only see in your feed what you follow and the client will get the ratings of whoever you follow wherever necessary.
Appreciate the explanations!