It just means that person decided to delete his post .
Often happens, sending to wrong thread, make comment and then reread post a realise the question you ask is answered there, etc.
Logs are pretty much essential for getting anyone to analyse a problem.
If the log is too big, then put it on a google drive, drop box, or any of the other network storage providers out there.
I would like to see specifically the IMU/AccZ graph as I am not sure how the VIBE message is derived.
You have excessive vertical vibration which will screw things up as you have experienced.
You haven't mentioned flight performance?
Do you have anything touching the Pixhawk, like wires hanging?
Are all the motors aligned horizontally? (check your prop tips line up with the motor next to it)
Anything loose in the frame?
Is the frame flexing? (compare vibration in forward flight to static hover)
The X and Y are good so it is most likely flex induced.