Filtering spam is a useful service. Many Nostr threads are already overrun by shitcoin airdrop scams for example. IMO, this problem gets worse as Nostr grows and simple mute lists are not enough because spammers can easily create new accounts for each new spam message. Primal's current capabilities in dealing with this are far from perfect. We may miss some spam, we may get false positives. Some users might disagree with us on the definition of spam. That's why we are building the tools to give more control and the final word to the user.

I am serious when I say that competent content filtering will be a key feature that Nostr clients will compete in. There will be clients that don't do any filtering whatsoever (or make filtering an opt in instead of opt out), and that will attract users who want that. We don't claim to have the final answer to any of this. We are simply working on providing the best service we can and doing so in a transparent manner (our entire stack is FOSS). We really hope that others will stand up services with different rules so that we can all learn from each other and adjust.