Spamwidth!

And so it begins. I've suddenly started getting anonymous comments on a few conspicuous dreamwidth entries here and on my tyggerdev journal. Same pattern - the title is gibberish ("LFhAUqOJmAneg" or "PphOHwLINjHAxWAvK", for example), and the body is a sentence or so of apparently positive technically oriented feedback with one conspicuously mis-spelled word. Anyone else seeing this?

Guess it's time to disable anonymous commenting, but since there seems to be no attempt to add a link or sell me anything - anyone have insight as to the point of such comments?