And here is Nostr global feed before and after spam filtering.
A few more examples. Including the Damus relay, which had a 52% total volume reduction.
Basically all spam detected was with 99% confidence or more only.
This stuff all adds up too. I found one specific spam event (duped, unique event_ids) I had stored 360,000 times on my relay 😟
Interesting there are a fair few relays where the traffic didn’t change at all - basically not being used by spammers (or syncing from a relay that is).
https://i.ibb.co/QbpRCRB/image.page
Discussion
Nice, actually those keywords can also be used for keyword filtering in nostr client. Unfortunately, probably most client haven't implement this basic feature yet 😅