Hardened Mode defeats its purpose because advanced users who utilize UAC and only download and run safe programs do not need it.
Novice users would not know what to do if they were presented with a popup like this.
Just by looking at this popup can you tell if it is safe or malicious? It gives you no details at all about what this program is or does.
Of coarse an advanced user would know what to do, but then an advanced user would not benefit from having Hardened Mode enabled in the first place. How many of you would add an exclusion for this popup?
Enjoy!!