I’m running 2.71. Didn’t even know 2.72 was out. I’ve downloaded it and did the same thing, but nothing. Sorry for being the last pesky fly of the summer. I don’t get it. The only thing I see different on your pics is that when I bring up the downloaded zip in my downloads folder, it’s already unzipped. Yours seems not to be. Don’t see why that would change anything though.
Then I search for the “mesh cut” but it’s not there.
I’ve tried downloading the add-on again, rebooting blender 3-4 times, slamming coffee with my my hand on my forehead and staring at the screen, but nothing seems to work.