I see this note. I dont see it on my relay though, or any of my inbox relays, but I do see it on wss://nos.lol/ I'm not sure why. I haven't changed my relay or chorus throughout this spam epoch. I'll restart it.
Maybe #amethyst client went crazy. What I wanted to tell you is to use a graph library in your client, because at some point this WoT will get serious, and it's all just a graph, so no need to reinvent the wheel of graph algorithms. Second suggestion for your relay is to only let people write into it after they pass a CAPTCHA at registration or at each message they send.