I've sent a copy/paste picture of one of the pages to Josh a couple different times asking if he could figure out a way to block them before they're able to post. No response from him. Their IP shows they're in China
It's spam. Spam is a constant battle. When we implement a new solution it often takes only 6-12 months for them to find a way around it. We're working on a solution but sometimes one gets through. I'd rather one get through than blocking someone who needs real help.