[maxwindiff]

Same here. The way the thing wobbles in the video doesn't inspire confidence. Although even if the monitor falls off I don't think it will hurt too badly.

[hinkley]

It's hard to keep wooden structures from racking, and wood flexes a lot even when the joints are solid.

As I stated at the top level, I'm not a fan of the hinge, but the side braces he added to hinge were a good idea.