1.  It's not necessarily projecting. If tech-savvy people are having issues figuring things like nsec out, it can be fairly safe to assume that the average person will also have problems figuring it out.

2. It's not just the diversity in content, or rather the lack thereof, that people are not a fan of. It's that all of the most popular clients have bitcoin baked in. I've said it once and I'll say it again: A large number of people see "Bitcoin=crypto=scam" and will nope the fuck out when they catch ANY whiff of Bitcoin. Education/onboarding/UX is all fine and dandy, but until there are some client developers and relay operators who are willing to divorce Bitcoin from what they are offering, there is a good chance that The NOSTR can and will ultimately flounder.

3. It doesn't matter how bad "Big Tech" fails. If the outsider's perception is that The NOSTR happily allows content from "nazi pedophiles" without repercussion and no hope for better moderation, then people will nope the fuck out without giving it a chance. Doesn't matter if that actual type of content is being posted or if it's just one's own biases coloring their perception of what's being posted.