[Sebb767]

The problem is that anything you allow against the perceived enemy might come back to bite you if you suddenly are perceived to be the enemy. This is especially true when silencing opinions; you're not only taking away their right to speak, you're also taking your right to change your mind.

I fully agree with you that when judging a specific occurrence, the context is really important. Judging completely without context, on the other hand, is good way to know whether the action is something morally acceptable.

In this case, the 'goodness' of the action clearly depends on whether you like the target. So I'd argue that this really is not a good thing in general. It's slightly worse if it hits the 'good guys' and slightly better if it hits the 'bad guys', but it's not good either way.