I loved There is no Antimemetics division. I haven't read the new updated to the end but the prose and writing is greatly improved. The idea of anomalous anti-memes is scary. I mean, we do have examples of them, somewhat, see Heaven's Gate and the Jonestown massacre, though they're more like "memes" than "antimemes" (we know what the ideas were and they weren't secrets).
I'm a bit disappointed all names are changed in the new edition. I understand that SCP-... had to become U-..., but I've grown attached to the character names, and they're all different!