I recently brewed a coffee stout using the WLP 007. It looked like egg drop soup on the stir plate. I'm now 10 days into fermentation. Checked the gravity last night and was at 1.016. OG was 1.064. Activity is nearly absent in the airlock too. Gonna keg this weekend and add my cold steeped coffee. Next up, ESB. Gonna use the east cake from the stout.
I noticed the same thing in my 007 starter last weekend. My GF walked by it and called to me "Hey! There's something wrong with our starter!"
Extremely flocculant stuff. I had a flask of 1098 right next to it which I heard was the Wyeast brand of the same strain. While it was very cloudy it had nothing near the egg drop/cold break appearance that the 007 started did.