I understand Reuters taking down the article, but why would Lawfare or other blogs comply? What could an Indian court possibly do to someone entirely outside of their jurisdiction? It seems like the most appropriate response is "no, and we're going to publish the demand letters," which is exactly what techdirt did.
Let Rajat Khare - the guy who is likely behind Appin - file in a US (or EU, or wherever) court. In the US, at least, he'd have to provide some evidence that the article isn't true, which he probably can't.
Fuck Rajat Khare and Appin, the hacking company he almost certainly controls.