That featured tweet is an exaggeration:
"I never thought of it this way. It's basically the cyber version of being allowed to murder someone for entering your property."
It's more like being given a license to burgle your burglar and destroy or steal your own property in the process.
This sounds good. I've always been a fan of an eye for an eye, but the collateral damage will be horrendous: Person A burgles Person B, who suspects Person C, and burgles him...He then suspects Person D...And...See where i'm going with this?
We'll end up with the Purge...