Why don't you just add warn / hide / ban to the protocol?

Doesn't scale. For every spammy cast, you now need a corresponding action to counteract it. Determined attackers would programmatically spam all channels, requiring all owners to use up mod actions. Bans would still need to be per channel, resulting in bloat.

I love this idea

To fight SPAM is better not to react

It's better to order content by quality rankings

It's better to give Moderators ability to Rank content

Like Google

Google don't erase websites

Simply, don't rank SPAM Content FIRST

FARCASTER Native Angel Investor

Web3 Biohacking Cryopreservation Health Business

Host of /degen-es and /replyguys-es

Seems like their SPAM filtering does NOT work well. Please check my last post where I explained an issue, but it is not shown under this channel! 
Honestly, I am getting disappointed for not receiving any responses for such cases.