The rate of storage increase on my Nostr relay has slowed down noticeably since I started enforcing NIP-05 verification on it yesterday.
Discussion
Your message made me curious wat NIP-05 verification is.
For everyone else that doesn't know this, I've found my answer here:
https://thebitcoinmanual.com/articles/nostr-account-nip-05-verified/
Getting NIP-05 verification is easy. There's a lot of ways you can do it. But it's one additional step that some spammers won't bother to do.