zlacker

Sorta. But one difference is that Silk Road wasn't out robbing or murdering anyone. So there's no justification in extorting it or informing on it. Where for a gang, an informant might be trying to overall save lives.

Another difference is scale. The extortionist that was after Ross was threatening to leak data on hundreds or thousands of innocent people. Do gangs usually find themselves in such situations?

If a gang is just selling drugs, not otherwise robbing or killing or hurting others, then I'm not very troubled by them killing extortionists, no. I just doubt that scenario makes up a notable portion of gang violence.