I’ve disabled trackbacks and pingbacks due to receiving truly vile spam. I learned about it via PhotoMatt and immediately checked comments and trackbacks, finding some stomach turning entries which I immediately deleted. Evidently, Spam Karma has been updated to deal with trackback spam, so I installed it on both my weblog and Jack’s weblog. The trackback spam was sufficiently upsetting that I will just leave it turned off for a while, until I see if the Spam Karma fix works for other people.