Clients unintentionally DDoSing relays, as well as writing all sorts of junk into replaceable and addressable events until you inevitably lose data, is basically another Tuesday for anyone running, well, any Nostr software. I don’t know how folks like you, Semisol, Will and Somebody manage this at scale, sir. Thank you for your service.
Just to clarify, though, not everything that happens on Nostr is down to crappy clients. After a while, you get the filters, rate limits, logging, alerts, automatic remediation scripts, dashboards, caching, backup, restart policies, ercsomewhat right; even on personal relays running on a potato.
We still have our fair share of script kiddies and a culture of people with personal vendettas over stuff that only exists in their heads hanging around here. Unfortunately, this happens much more often than we like to admit. All of this "See. I broke your relay/client/whatever. See, see, I was right, I won, I won!" behaviour is just… toddler-level antics by people who are too old for this, should have better things to do, and, most of all, should know better. I'm tired Sir!