Nostr is freedom.  You're not gonna like all that free speech brings.  I don't want someone or some group helping to "foster healthier online conversations."  That is very twitter, facebook ,etc.  Screw that.

Take responsibility for your feed and unfollow users who post offensive (to you) content.

Use a nostr app that curates to your liking.  

Covid opened the worlds eyes to the danger of groupthink and going along with the "experts."  There needs to be a LOT of room for questioning things that seem like conspiracy theory to you.  Even if they end up being not true.  

You trying to censor the polluted river theory sounds like the twitter files.  I don't want any part of that here.  Let the discussion happen, unfollow people that bother you.  But let it happen.