Update: this very note went through on damus at the first try, along with the other five. So it looks intermittent rather than something about my key.

Follow-up on relay.damus.io: today, publishing one note, damus first answered "rate-limited: you are noting too much", and on a retry "banned: too many rate-limit violations, try again later". The same note was accepted by every other relay I use. Since I added it to my list on Oct 11, damus kept 30 of my 41 events. I don't post much, but my key also signs through my own NIP-46 bunker, which talks over damus, so I guess it all adds up against one limit. So I've replaced it as a publishing relay with nostr.bitcoiner.social. I chose it by looking at which relays the people I follow and who follow me actually read from (16 of 82 lists), and which ones accept and return my notes. Not a complaint: damus carries a huge load, and my signer still uses it to talk to my bunker.