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The bigshots are starting to pick up on the bandwidth-sucking referrer-spam jerkwads. I’m keeping up via Technorati; there’s far more out there than I can reasonably summarize.
Spam activity today: if you’ve got the User-Agent trick running, you’re still good. Plenty of new domain names in the referrers, so many that I think I’m going to recommend that you install the User-Agent trick if you haven’t already.
Li, I don’t know what the heck is up with Spam Karma and your hacker. I’ll investigate tomorrow, promise.