Is Owbid Catob an AI Agent Sent to Terrorize Lemmy?

The current whack-a-mole spam user that I keep having to block due to spamming awful AI imagery in many places is Owbid Catob. Is there any way that admins of communities can block this person's IP addresses so that they have a harder time posting anything? I will keep blocking the new accounts as they pop up, but I'm getting so tired of this spammer.