This is definitely an attack.

Nostr devs, be wary, perhaps go anon. No point being arrogant at this point and assuming you're safe. 

nostr:nevent1qqsv9k8spy49p7h4vcq83zc7sxw432f525ykqdhmea05e7c4v87s03gpz9mhxue69uhkummnw3ezuamfdejj7q3qlelkh3hhxw9hdwlcpk6q9t0xt9f7yze0y0nxazvzqjmre3p98x3sxpqqqqqqzletg0w