Believe it or not it was designed to do this!
I don't believe it was designed to do this by the manufacturer (CAT).
Notice the additional ears on the front bucket and the feet.. they look like they are designed to stradle the edge of the hopper to prevent sideways movement.
Yes I see them and they look like items cobbled together by someone who thinks they are clever.
I doubt highly they where engineered or 'blessed' by Caterpillar.
Wait for a hose, or some other component of the hydraulic system, to give out.
Very true.
While hydraulics are often used in 'critical' applications any time a hose failure could be life threatening devices are
welded to the hydraulic cylinder ports that will stop the flow if the hose breaks.
These devices can work by flow (two much flow will close a valve) or they can be 'cross' piped to the other port on the cylinder and require pressure from the pump to open them.
These devices can be seen on the cylinders of boom lifts, amusement rides etc.
You will not find them on the cylinders of the loader in the picture.
Finally I would really like to see him get it back down, getting up is often easer than getting down safely.
IMO this is a very stupid idea to try.
Bob