Our site has followed the same pattern as DaniWeb. To summarize, 50% drop in Febraury, 100%+ recovery in July, 43% drop on September 27th and now what appears to be a full recovery starting October 4th.
One thing I did do was submit a reconsideration request to Google last week, before I read anything about Panda hitting, because I thought we may have been penalized for a developer bug that caused a lot of UGC to be hidden from users but not from the engines. That bug was published roughly the same day Panda hit, so it's difficult to tell the true cause of the drop. However, seeing what happened with DaniWeb's recent recover, and what Alika said above, I'm assuming the developer bug had nothing to do with it.