What's with the guitar violence?

[CarneVaca]

In some other threads, it was mentioned that Lindsey was mistreating his guitars on stage. In some cases he was handed guitars that were not tuned properly for the songs he was about to play. People have used terms like "broken" and "out of tune" but I suspect the guitars were in the wrong tunings. Maybe with the new setlist the guitar tech got confused about the sequence.

Be that as it may, what's with this beating up on guitars? It hurts me to read this. I am always taking extra care not to even pub nicks on my instruments, then I read this and I have to do this: