Using the internet trafic of the persons using your service to protect your anonymity and thus, protecting the service itself.

So you shouldn’t have to inform your users that their traffic will be used in a cyberattack?

In most jurisdictions informing them would potentially make them legally liable. The fact they had no knowledge shields them from liability.

	▲	ajam1507 an hour ago \| parent [-]
		So their desire to not be used to commit a cyberattack doesn’t factor in? As long as they aren’t legally liable, it doesn’t matter? Also a checkbox that says something like “I would like to help commit a crime using my internet traffic” would keep people from having their traffic used without consent.