Imagine a #nostr feed that removes known/tagged bots based on your WoT, where bots still slip through every day.
Then, imagine a nostr feed that removes known/tagged bots 𝗮𝗻𝗱 unverified anons. Bots might become very rare because they can't pose as anons, but this feed would also probably become a lot more popular than less filtered feeds, which would leave nobody to see posts from new anons that don't have any trusted contacts in the network to vouch for them.
Next, imagine a nostr feed that doesn't care if you're a bot or an anon, it only filters out npubs with behavioral tags you want to avoid. For example, it filters out everyone your web of trust has tagged for refusing to come clean/apologize after lying, and everyone your web of trust has tagged for egregiously ignoring replies. So your feed is only people and bots who can be honest; who actually read and respond to replies on their last post before making their next post.
That's what we really need.
Tags to verify if you're human or anon are just a band-aid we should have by now (easy to implement) while waiting for a more complex tagging system.