Personally I hate downloading stuff without knowing if I'm the slightest interested in it.
Media Player Classic makes auto screencaps, not perfect since it o/c doesn't pick the best caps, but at least you might get an idea of what's in the clips. As you said "perhaps someone with a few disposable minutes could take the time to make a few caps" it don't take long.
If still not happy about doing screencaps that's totally OK, I'm just not downloading them
