"Crapdamnit Bill, when do I get to kill a fool??"
"Hate to break it to ya kid, but probably never. You want action you shoulda joined one of those Single-purpose counteraction groups, volunteered for some incandescent structural alteration or specialised in non-medicinal trephining. We're just a security force."
If you're forced to play this (when using the Core Set, for example) and you're not focusing on flatlining the runner, this will probably seem a hard way to score 2 points. I certainly thought so, until I realised that whenever I scored this the runner would pay to remove every tag, even if they knew I had nothing else in hand to punish them. It's enough of a deterrent to make them pay that 4 after a Siphon, that extra kick from a Snare(!) and running through trace ice. It will shave small but frequent sums off the runner's account, keeping them from getting (too) far ahead and giving you the finger while the whole world watches. In the end, pretty much everyone clears tags anyway. This just glares and threatens to aggressively prod those who think they don't have to.
That said, there are fringe cases when it might actually have its moment, such as...
- A careless 4th click run into a Snare(!) you can punish (probably fatally) the following turn.
- Spending 8 on 2x Biotic Labor to hit them for 5 with a surprise robot army?
Nothing else really comes to mind.