He did mean Baader-Meinhof phenomenon (recency illusion). The Wikipedia editors deleted the old entry and made it a straight redirect to the "cognitive biases" page for some bizarre reason. I'd link to an explanation of what it is, but I'm sure you'll find a reference to it again in the next few days.
I think amvp saw it a few days ago and then again now, hence the reference to the Baader-Meinhof frequency illusion. I hadn't heard about that until 5 minutes ago but I grew up in Stuttgart so the real Baader Meinhof guys are some bad memories from my youth. No doubt I'll be seeing random references to Baader Meinhof in the next few days.