The scum spammers, who doubtless describe themselves as SEO consultants, have discovered a new way to get links into forum comments: trackbacks and pingbacks. Irreal does have the occasional legitimate trackback and I enjoy them as they give me a sense of who's reading the blog and what they have to say about the topics we consider here. Lately, though, they've all been phony trackbacks designed to get Google to notice a link to some site or another that has nothing to do with Irreal or the things we talk about here.
Therefore, I've turned off trackbacks/pingbacks. Comments will remain as they were: unmoderated but requiring a CAPTCHA or registration.