It could be inevitable as nostr grows and attracts more of mainstream society, but that kind of  goes with free speech. It’s really the user’s responsibility to mute content that’s unhealthy or sketch and follow real, like-minded folk. Knives are really helpful for cooking, but can also be used for murder. Any kind of “social media”can be used destructively, but I would say it’s the lesser of two evils compared to the alternatives.