Andy_Langton - 8:56 pm on Apr 4, 2012 (gmt 0)
I had that message recently for one particular site - in that instance, the message itself was several weeks late.
IMO, the message is an "alert" to tell you something's up, but it is not, in itself, actionable. As you say, you should know already that this is happening!
Whether you'd get goof advice with the message ID posting route, I would be rather sceptical.
Personally, I would follow a more general route to diagnosing the problem:
- Identify the cause of the drop - if it's Google traffic, which keywords and landing pages are affected?
- Is it a position drop, CTR drop or both?
- Look at the competing sites - did you get beaten by new or stronger competitors, or did you do something yourself that harmed performance?
The better you pin down the cause, the more actions you can take. Assuming you have the data at your disposal!