That makes sense. If I'm reading the stats correctly, LAF dropped a dozen core projects that were generating them anywhere from ~10K to ~200K a day compared to the day before.
Credit for today dropped to zero on the following projects for what it's worth...
Primegrid
Seti@Home
Virtual Prairie
Eon
CAS@Home
Cosmology@Home
Ibercivis
Enigma@Home
Rectilinear Crossing
NFS@Home
Spinhenge@Home
AlmereGrid